Search Results: my ex girlfriend just got cheated on

Me and my now ex boyfriend were together for 1 and a half years
We had previous relationships before but this is both our longest relationship
I'm the first girl out of all his exes that he has introduced to his parents
He uploads pictures of us often on his facebook and instagram and saying im his girlfriend and stuff like that so all of his family, friends and coworkers knew about me
He was a very affectionate and caring guy
He makes sure he makes time for me during the week (go out to dinner, movie, etc)
He calls me every night after work to talk about our day, what we are doing, etc
Everyday, he tells me that he loves me
He has never cheated on me
But we had our ups and downs:
- I would accuse him of cheating or wanting other girls and he gets annoyed and sick of it
- We would argue about stupid things at times
- Since he's a fitness model on instagram, there's some random girls (most are overseas or diffferent states) that comments "wow you're hot" etc and I would keep questioning him about it
- He has depression and I kept asking him about it and kept pushing him to tell me whats wrong with him and to tell me his problems but he refused to and we argued
After the argument, he CALLED me to break up with me saying:
"I don't think its going to work out with us. I'm not happy in the relationship anymore. I don’t think you’re the one for me. I think maybe I’m in this relationship because I don’t want to be alone. I think we both need to move on. Meet new people. Make new friends. Do our own thing. I won't remove you from facebook or instagram. I don't hate you or anything. I have nothing against you."
Ever since the break up, we haven't talked to each other
But yesterday I had posted picture a "selfie" on my facebook and he "liked" it
I went on instagram and I did see him commenting on few girls' photos though and following them :(
Has he already moved on?
Does he not care and love me anymore? :(
It's been a week

First of all, I just wanted to tell you guys that I still have trust issues from my previous relationship
My ex boyfriend cheated on me so now I can't fully trust ANY guy
Me and my current boyfriend been together for almost 1.5 years
I do trust him in a way but not 100%
Although he has never cheated on me
He's a really attractive and fit guy
He's kind of like a fitness model on instagram
He has many followers on instagram and facebook
There are some girls that comment stuff on his instagram saying "youre so hot" , "wow gorgeous" , etc etc
He just likes their comments and doesn't reply
We do take pictures together and he does put our pictures on his facebook and instagram
So anyway, few days ago, I kept nagging him how he wants other girls and he's not happy with me and all that stuff
He got really annoyed and saying "If i wasn't happy with you, i wouldn't be with you"
Everyday/night he calls me and he ask how I am, what I am upto, what he's upto, etc
And last night, we were on the phone and he was playing his game
And then he said "Im gonna tag u on something"
Then I checked my facebook, and he uploaded a video of him playing his game and then he posted it on his facebook and his caption on it was:
"My girlfriend thinks im chatting to other girls.. but this is what Im actually doing.. lol" and then tagged me.
All his facebook friends can see the post
Would he do this if he was cheating on me?
Would a guy act differently if he was cheating on his partner and/or want other girls?