I think my previous relationship saved my life
How did it save your life?
My ex-boyfriend once told me I have to have sex with him in order not to break up with him.
I don't understand how that saved your life. It is wrong what he did to you.
I had sex with him because I knew that he was looking out for my best interest.
Your boyfriend is tricking you into believing that he cares about your well-being when he doesn't. Don't go along with having sex with him when he is just using you. You are worth more than that.