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

My boyfriend had this facebook friend(21F) that he was always looking at, and I mean constantly searching her profile. I didn't really notice until about a year ago because she made a flirty comment on something he posted. While I normally would ignore it because it's just facebook, it really bothered me. 

So I watched the friendship's activity from my profile for awhile, then one day I noticed he had invited her to meet up with him in a state he was touring through about six months ago and I confronted him about her and he tried very hard to confirm that it was just some girl he knew over the internet and nothing else, just a girl he had met in high school on the web.

Well, When he returned from tour I felt really weird and insecure so I looked at his browser history and he had done nothing but search for her multiple times daily while he was gone and not me, his girlfriend, once.

Now, six months past that, he still searches her almost daily and flips through her photos. He did DELETE her after tour because I admitted to spying and having a problem with what I found. I know I'm in the wrong for snooping and prying, but I'm at a loss. He claims he cares about me but I can't believe it when he's looking at some girl every time I'm not around.

Today I was looking at his search history through facebook on my computer while he was on at home and he was searching for her right when I happened to be looking, so I clicked on her profile then accidentally added her in a panic, and since he was on too he saw that, then I deleted her quickly, but he already saw. 

He then cleared all his searched history after looking for her profile about 10 times due to her being added to his profile without him doing it, then kicked me off through his browser and changed his password.

We haven't spoken yet but I know he knows it was me, no one else would be on his profile or add that specific girl.
<bot>: Boyfriend is constantly looking at one specific (21F)'s facebook, confronted him about it, he deleted her but still looks for her profile daily.