What is my move here with this man?

I have been engaged for nearly 2 years and he comes from a very hard upbringing. Disabled parents, not so many friends, girlfriends who cheated and were abusive etc. He just realised he can't pursure his dream career. I love him so much and he is filled with trust issues and other insecurities. If you video taped my life away from him any guy would see I am 1000% loyal and trustworthy. I do avoid details occionally and stuff to protect him from his head blowing up with insecurities. I mean the tinyest stupid things. He takes offence to almost everything and anything. I go out of my way to look out for him, be nice to him and show him huge respect. He is filled with anger and distrust. Anways the reason he broke up with me is becauase I went away on business and when I came home, he saw I had went to some sites. I never look at when home, and when I'm away he uses a vibrator, but says he is thinking about me.