How can I stop someone from hurting me when they don't care about my feelings?

Set my sail away from them. And if it is not possible, I'll try to keep a minimum contact with them.

If possible remove that person from your life. There is so much negativity in the world and you are not obligated to keep ties with anyone who is hurting you and clearly has no concern for your feelings. This might me scary and difficult so look to friends and family who can support you. If that is not an option there are support groups for these type of things. You are never alone in these situations and where it may be hard, in the end it is better to hold on to people who care rather than those who do not.

If they don't care about your feelings, they will not stop hurting you. The best thing to do is to limit your contact and interaction with that person. Perhaps even cut them completely out of your life.

avoid them as best as possible, tell someone you trust whats happening so they can try and help you with it.

I wouldn't know your situation well enough to say, but if I were you, I would try to distance myself from those people

In my opinion leave them because that just shows they don't care at all about how you feel or what you say don't stay with a person that doesn't respect you people come and go out of lifes move on that special someone will come along one day just keep your head up high and stay strong

You are the owner of your feelings. No one has control over how you feel but you. Do not let them get to you.

Keep your distance, those kind of people are not worth your energy. You deserve so much better. People who don't care about your feelings will always hurt you, but if you keep your distance and just be careful they will not be able to hurt you.

the only one who can stop yourself , hurting you , is ONLY YOU, just stop thinking about others you need to understand that there are some people you will not care about your feelings no matter how good you are with them and than on the other hand there are some people you will care for you and accept you at your good and worst .

You may want to ask yourself why you keep this person in your life if they do not care about your feelings. You can stop them from hurting you by focusing more on yourself, your own personal growth, and why it is that why they do causes you so much pain. Trying to find out the deeper reason for your pain may be really insightful, and it can help you deflect pain that is coming from outside sources. You may ask yourself if the other person is hurting you, or if the pain is already there inside and this person just brings it out.