Search Results: liking a girl with a boyfriend

So i confronted my boyfriend 2 weeks ago about seeing him liking photos of girls he knows (e. g. ladies at his work and this girl he knows from high school) on fb and instagram - whenever they upload new photos of themselves (not slutty pics though)
Some of the girls are taken (either have boyfriend or husband)
He tells me he knows them personally and talks to them at work and they all know im his girlfriend since he uploads pictures of us on his fb and instagram and how theyre friends and some of the girls at his work are older and taken and also the girl from his high school is taken and have kids
I told him "i dont care.. anyway I will know if you "like" or comment on any other girls photos."
I do stalk his activity logs and he hasn't liked or commented on any other girls photos ever since...
am i wrong to do this?
And if he hasn't liked any girls photos ever since.. does that mean he's scared to do it now?

So my boyfriend works with this girl
she's facebook friends with him and she follows him but my boyfriend doesn't follow her
My boyfriend said she told him that she got dumped by her boyfriend recently (a month ago)
He always tells me stuff thats going on at his workplace
Anyway, he takes selfies of himself at the gym (sometimes shirtless photos of him with his abs) and he uploads them on his fb and instagram and she always likes those pictures
And he also take pictures with me and he put the pictures of us on his facebook and instagram as well
And she likes those pictures as well (both on fb and insta)
Wtf?
Why does she keep liking my boyfriends pictures?
Does this mean she likes him?
Should I be worried?

My boyfriend told me for months that this girl was a lesbian and that I had nothing to worry about bc he just saw her as a "bud". Then red flags were thrown by her multiple shady actions (one example: wrapping her leg around his in a theatre) and I eventually got fed up and told him to cut her off or that me and him were going to have a problem. Anyway, he being super pissed at me, called her and cut her off after she admitted to liking him. Then he apologized for not believing me in the first place, we made up, and months later out of guilt he told me he started liking her back... Then I got angry and he lashed back at me. He said that I shouldn't be mad since he cut her off, that he was just developing some feeling and didn't like her all the way, and that I was being childish and overdramatic. I know that he really does care and that and the fact that I love him is what makes it hard.