Can or should I ask my significant other to stop talking and to not associate with his ex? If so, how?

I am a firm believer in trusting your partner until they give you reason not to. Telling them who to talk or associate with showcases a lack of trust and self confidence, which is harmful for you both and your relationship in general. If your partners ex is someone who rubs you the wrong way and/or has given you reason to not be trusted, then I would suggest to communicate with your partner. Let them know how them communicating with their ex makes you feel. Try not to give them ultimatums. Just express your feeling and allow them to make the decision.

Yes you can ask your ex to stop talking to his ex if that makes you feel uncomfortable. We all have different boundaries in relationship and its crucial for both parties to respect each others feelings. It doesn't have to be a negative thing. Communication is very healthy. If you feel that him seeing his ex is a deal breaker, he can make his choice and if he chooses to not respect your feelings maybe you might not even want to be in that relationship anymore and can probably find someone who is better suited for you. I hope you the best :)

You have every right to ask your significant other to limit their interaction with the other person, just out of respect for you. I would not ask them to cut all ties with that person yet because there has been a relationship established between the two over a course of time, which has created a source of bonding. To ask them to completely cut them off might promote resistance create a problem in your relationship. One thing you might try would be to ask your partner when they associate. with this other person that they do it with you as to create a sense of inner peace for you. Explain to them how you feel honestly. I feel that if they truly care they will give you that respect.

Because toxic relationships are hard to break. I don't know the details of your relationship, so I can't pinpoint the exact reason, but there can be a number of reasons why people keep going back to a toxic relationship. If you're in a codependent relationship, that could be one of the reasons. Also, the familiarity that comes with the person or the relationship keeps people going back. Or if they are in love with the toxic person and attached to them and habituated to that toxic behaviour, and that makes it hard to break it off. Some people also end up staying because of the fear of being alone and not being able to find another partner again. Whichever of these it is, I hope you can find it in you to disengage and leave (if it is very toxic for you) because being in a toxic relationship can be extremely draining and damaging and ruin your life and mental health and peace. It will be a hard thing to do at first, but ultimately very liberating and an act of self love.

Double Edge Sword there: A. On one hand, he wants you to trust him. B. He may be/feel irritated/annoyed/offended/accused. C. Combination of (and not limited to) A & B. If it were I, I would attempt to compromise, ask a few questions, get a feel for the past relationship, and make an educated guess on the nature of the continued relationship. If your partner says they would rather not talk about it. Thats may indicate: Guilt, Shame, Longing (they miss them dearly though the other has denied/denies their claim of them.) though if something seems to be up 8/10 of the time? : Trust your gut.

This is a hard question. It is super important to communicate with a significant other about how things make you feel, and what you are comfortable with. Going to your significant other very calmly and approaching them with how you feel is a way to start a conversation. It is also important to not be overly offensive when saying that them talking to an ex makes you uncomfortable because they make take it as you having mistrust in them. It is important to listen to how they feel as well, they may still want to continue contact with them. If it something that they wish to continue doing, you have to respect that boundary they made and trust them- or you can assess if your relationship is more important than them talking to an ex.

A wise man once said, "seek to understand, then to be understood." Or something like that. Why is it that he talks about his ex so frequently, is it for a reason that can dampen your relationship like still having feelings for her? If not, then good and following clarifying, it would be beneficial if you helped him to understand how it makes you feel when he speaks of his ex. If he is as understanding as you, he should cease doing so, but if he does not and continues, you may want to reevaluate your relationship with him.

On the question of whether you can, or are able to - this would depend on how comfortable you feel in terms of the possible reaction it might bring about. Otherwise, bringing up a topic should not be a cause for concern in itself. To the matter of if you should, well, ultimately you as an individual have the right to decide what your boundaries are. If it's an issue for you and not shared, then perhaps a compromise can be reached. Relationships demand a certain amount of patience, sacrifice and problem solving to be worthwhile after all. Ask and be sincere in reaching a compromise, or deal with the internal confusion this causes - either way it's important to take a decision and move forwards.

Communication is always the key. You know this situation and you significant other better than anyone else, so think what could be the worst and the best case scenario if you share your feelings. It is always better to talk things through. With talking, you can see the other persons real intentions with you. Remember, if communication doesn't work, always think what's the best for you. Ask yourself if you feel comfortable with being associated. Understand if that is a big trigger in your relationship. After reviewing these questions, act accordingly as your heart says. Always remember that first comes your wellbeing. Try not to think about what the other person might feel like. Someone always is going to feel different about your emotions and acts. Of course, you shouldn't be rude. Just speak from your heart. I hope this helps! If anything, let me know!

In a relationship, it is important to set personal boundaries, If what your significant other is making you feel bad (sad, worried, jealous... or whatever it is you feel) you should totally let them know in a calm manner so that you can discuss it together. But, perhaps, whether your SO actually stops talking or associating with his ex is something you both have to decide as a couple, I don't believe it is something you can ask him to do unilaterally. So, my advice is to talk to him about how this makes you feel and come to a mutual understanding about what to do about it.