Should I get a divorce

So we’ve been together for 2 years and I recently found out that when he went to visit his grandfather who had a stroke about a year and a half ago he contacted an ex and they had phone sex. I was pregnant at the time when that happened. After he came back a week later he proposed to me. I said yes without any knowledge of what he had done. A year later I found out and asked him and he came clean after asking him a couple times. I became insecure I didn’t trust him. He would check out females in front of me I told him to stop. He watched porn I told him to stop (he lied about not watching it a couple times) the most recent thing that has put a strain is that he’s stayed up after work until 2am watching girls shake their asses/undress on Facebook videos and I’ve had enough. I asked why he keeps doing stupid shit like this that he wouldn’t do if I was sitting right next to me. He said he would stop and I don’t know what to believe anymore. He’s not contacted his ex, he hasn’t cheated, he just watches wastes time watching these stupid videos instead of coming to bed and sleeps on the couch instead.. and I’m just hurt I need advice from y’all because I don’t talk to anyone family/friends about my relationship just to avoid drama and them seeing he’s bad. He’s a great father tho.