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

If it's something that bothers you, yes, you definitely should bring it up. You can't force them to stop talking or associating with their ex but they should stop if it's something that's bothering you by themself. If even after clearing explaining that it's something that you don't like, they waffles and tries to go on an obtuse angle or try to make you feel guilty or get defensive, take some time away to think about the relationship. Do you really want to be with someone who values their ex over you? Think about it for a while. Don't phrase it like a command when you tell them, phrase it like you're explaining your feelings. "Hey, this has been really bothering me, could you please not associate so much with your ex?..." is a good way to start. You've got this.

Yes, you can, and you should first sit down with your significant other and tell them what the issue is at hand. Firstly, listing out what the problem is and why this is emotionally affecting you and possibly the relationship and finding a middle ground to the problem - this technique can be used for almost any problem at hand in a relationship. If your partner does not understand the problem, consider trying to make them understand by trying to let the person see it from your POV and angle. If your partner still does not consider your feelings and thoughts then you should consider leaving.

if you feel comfortable in asking your partner, without confrontation, and feel that it won't cause problems within the relationship, then i would suggest it. A relationship is built on trust and an open communication.And if this is something that does bother you, it needs to be addressed delicately and with a bit understanding from both parties before it gets to be too much for you to handle. Being polite and speaking rationally will carry more weight to the validation to the conversation. Address your concerns and hope for the best At the vey least, you will know where you stand with your partner

In all honestly, does it appear to be some sort of jealously that they continue to talk with their ex? However at the end of the day they are in that relationship with you and you must instill trust in them for you see yourself with them for a longer-term, all relationships are built on healthy habits. It may be beneficial to ask why they continue to still communicate with their ex, however if they say that there are no true feelings between them anymore, you shouldn't have the power to control what your partner does or who they talk to. Just express your feelings with them and see how they react!

If you don't want to sound controlling I wouldn't make your partner stop talking to their ex unless they have a deep history together and are too close and you're suspicious. If you do tell your partner to stop talking to their ex make sure to have them understand your feelings and that you're not being jealous. I would say "Hey, I'm uncomfortable with how much you associate with your ex." Then ask why they hang out or talk so much and if the answer is unreasonable just nicely ask your partner to stop talking or being around their ex.

This can be a tricky one, since knowing that they're still in touch brings up some very painful feelings. Still, if your partner wants to continue speaking to his ex, that's entirely up to him. Calmly talking to your partner about how the situation is making you feel shows a level of emotional maturity and trust, enabling you to both come to a solution together. Asking them to stop talking to or associating with their ex might seem, to them, like an ultimatum more than anything else, and can create strain or conflict in your current relationship. In contrast, it can suggest a lack of trust on your part - commonly referred to as being the foundation upon which relationships should be built. Regardless of the choice your partner makes about their ex, it is their choice on the whole, and all you can control is your response to that decision.

If your partner and their ex share a healthy friendly relationship that you're sure won't backfire on you, or they don't have feelings for each other anymore, there shouldn't be a problem adjusting to that. But if their behaviour and activities make you feel insecure then you have all the rights to have a talk with your partner about it, telling them to not talk to their ex out of the blue wouldn't be appropriate as it could land barriers between you and your partner but you can always tell them it's making you insecure and you would appreciate if they reassured you that they love you and their ex and them are just friends.

You two should definitely talk it out. You mustn't keep your thoughts and opinions about it to yourself, because it can bubble up in the surface and might not end well in the future. It's best to talk to your lover about this and do your best in expressing your frustration. Communication, loyalty, and trust are very important in a relationship. In most cases, if it is true and genuine love, they'd understand where you're coming from. Listen to what your lover has to say and also understand whatever they may say or talk about, since this can improve and build up your trust with each other. I may not be able to have all the answers nor can I tell the future, but trust me when I say that whatever happens, will happen. It's best for you to learn how to accept the possible outcomes in this situation because you will need that as well in the near future. I wish you all the best.