I want to fight for it.

My boyfriend of a year ended things a week ago. He has some insecurities from his first marriage ( she abandoned him and his daughter, she cheated several times, he wanted to fight for the marriage she didn't). So he never told me he has insecurities and trust issues but, I can tell. I love him so much and we talked about marriage and kids. Everything was good and btw we are LD so everytime after a visit he acts weird like his hurting. Well, I want to show him that i'm here for him and won't hurt him. We talked the first couple days after the break up because his daughter was sick and he needed some advice on what to do since I have 3 kids. But, 2 days ago he stopped texting and I called him yesterday once and he never called me back. I want to give him space of course but, I also want to show him I'm not going to just leave him.

Side note; I've been told by my friends that I'm out if his league based on looks. But, I'm not shallow and I think his sexy and handsome. HELP!