How can someone's love for you stop so abruptly?

I don't think someone's love for you can stop abruptly. It takes time. And if it did stop abruptly, maybe there wasn't any love there.

I'm going to tell you what I know from personal experience. Yes, people can love you at one point or another, but sometimes things even feelings change with time. It may not have been you that made him/her change their feelings for you. Sometimes people have no control over what they feel. It could easily be something that he/she is going through that has made them feel like they should feel this way, but sometimes there is nothing that you can do about it. If you can fix it then great if that's what makes you happy and if that's what you want, but if not there comes a time when you have to let go and move on.

The love itself probably didn't stop abruptly, unless they found out something very upsetting about you (even in that case, they would probably still have feelings for you, just conflicted ones). It can be easy to confuse the emotions someone feels with the actions that they take towards you. Probably what you are experiencing is that someone's expressions of affection for you stopped abruptly. This can have many different causes. They may be angry with you, they may be depressed or going through some bad things that they don't want to subject you to, they may have been attacked and feel too ashamed and vulnerable to tell you, they may be less serious about you than you are about them and have decided to end it before it goes any further, they may love you but be afraid of what will happen if they get closer.

Everybody is different. Some people wake up and it hits them that they no longer love the same person they've been with for 30 years. Other people slowly learn to love over a few weeks and it stays steady until they die. Some people can just feel satisfied with one night stands. We're all different and it's not something we should worry too much about. They just really missed out on you and they won't realize it until it's too late.

you may have so much love for someone , but when you go through a lot of stuff with that person and you're constantly being hurt verbally and or physically its kind of making it easier for you to loose love for them and move on

Maybe they have been thinking it for a while, but have only just let you know? Maybe they have met someone else? Maybe they have realised they are on a different path in life to you? Maybe they are scared it is going all to fast? Maybe you have got it wrong and they do love you, you need to talk to them about it. Communication is key.

There could be a variety of reasons or simple misunderstandings. Maybe someone said something about you to them, maybe they noticed something about you that they don't approve of, or maybe they are just trying to show that they don't love you although they do - it could be anything at all! It's best to ask them directly about it :)

Love comes with a decision. There are people who might not find you attractive or adorable at the moment, but because they have decided to love the imperfect you, will stay in love with you no matter what.

Yes, some people may say they love you but carry doubt with them and sometimes that doubt can make them stop feeling like they do towards you.

You may never know if it has. Maybe this person is just not fulfilled the way "they" need to be. This is not something you can control however and you need to look past this move forward with the things you love and continue living.