Every time I date it feels like I'm cheated on and I just can't take it anymore.
How did you find out about that?
I was being cheated on several times by my previous relationships.
Going through emotional stress of being cheated on can really cloud your judgment. It's not good to think every person you could be in a relationship with would cheat on you, you should learn understand not everyone is the same and will cheat on you. Continuing the have these ideas that everyone will cheat on you will destroy any potential relationships you could have.
But... but... I just want someone to love me back.
Then you have to keep giving your love to people and hope that one day you receive what you're looking for. You can't get what you want without being willing to get hurt.