Lost

Besides cheating on me which i forgave him. Way overboard- I found out the he is talking to another man online m2m chat so i was wondering if he is gay but he said he never been with a man before that he was just playing around. So, i asked him if he posted his pictures PR and non PR. He said no. But he lied i found out that he posted his pictures nude and non-nude picture so i was really upset. So, now we are not talking at all, just ignoring each other. So, i do feel guilty for doing that finding out stuff to ruin relationship but i just needed some answers, if he just told me the truth in the first place then i wouldn't go around and look for the whole truth. What should i do and how do i resolve this..i do love this person and we do have kids togther. Now, he said he could not trust me again, no more relationship and not looking back again. I am feeling empty now. Still thinking about it--feeling guilty.