<human>: Can you succinctly summarize the text in 1-3 sentences?

My boyfriend of a year and a half and I recently moved in together. We've had trust issues in the past. He completely lied about talking to/getting drinks with a different ex causing me to completely distrust him and we eventually broke up when he moved across country. He moved back because I told him I loved him and he realized he loved me as well and wanted a second chance. He moved back last July.

During that break I began talking to this guy, J. He was a manwhore (I knew from multiple random people and could guess by his sketchy "dating") but hey, I thought I'd never see my current bf again and I was lonely. When my bf moved back I ended it with J, turns out he was back together with his ex anyway. I didn't trust that my bf loved me when he returned and I was dumb enough to keep texting J, no intention on cheating but still dumb. Anyway, my bf found out and I fucked up but we moved on and we're happy now. That was I wanna say last September. 

We moved in together and things have been really good. He left for a week and I was feeling really depressed and alone so when he returned I looked at his internet history which is horrible I know. But I found out he checks on this one ex gf, S, ALL the time. I can't tell if it's innocent but just constantly checks her tumblr, reddit profile, Facebook (even though he's not friends with her), and Instagram. I know it was terrible that I snooped which is why I don't want to bring it up. But, it makes me feel like I'm not good enough or that he's tired of me. 

Reddit, what have you done when you snooped and found something you shouldn't have?
<bot>: I snooped on my bf's internet history and found out he's constantly looking at an ex's social media and it makes me feel like shit.