Me and my boyfriend have been together for almost 5 years; we're both 23 years old. He has openly-admitted to watching porn when he was in high school (he just told me, I didn't ask), but he said he stopped because he felt horrible about it. I found a picture on Instagram that he liked of a girl in a bikini 8 months ago, so I approached him about it. I told him it really hurt that he would look at another girl. He said he doesn't know why he did it; he felt like he slipped and messed up.

Because of that, I felt we needed to re-build trust (mainly because he wouldn't admit to the action at first, but told me after I told him that I just want the truth and will be constructive about it).

Last night I logged into his e-mail account (I just felt a moment of weakness), but it's an old email--he hasn't used it in about 3 years. I was looking through the sent folder, and I found conversations with girls. When I met him, he would often use Omegle--an online chatting website--because he doesn't have a lot of friends and wants to talk to people. The conversations seemed pretty harmless, except one. There were pornographic photos of a girl that were sent to him 3 years ago. I approached him about this and he told me exactly what happened. He had been talking to some girl, and she asked if he wanted to see pictures. He said he had a moment of weakness and cowardly said sure. He said he thought they were going to be bikini photos, not completely naked photos. He then told me that after two pictures, he asked for another one. He said he felt he was getting sucked in. He said it was a moment of utter cowardice and weakness. I asked him how long that continued, and he said that he felt guilty and stopped using Omegle altogether after he asked for another picture.

His actions took place 3 years ago, and he doesn't show any signs that he looks at porn. Deep in my heart I really don't think he is looking at porn or asking for pictures from strangers. He has changed and grown a lot over the past 3 years. He seems really committed, and has put himself through school and now the navy reserves to become a better person for me because he said he wants to marry me.

I just needed to vent and would like any insight.