Bf hasn’t been home in 2 days

Before i start the story i want honest opinions. If I’m wrong tell me. Please. To make a long story short my bf and i have been dating for 3 years we have a 5month old baby & while i was pregnant he betrayed me in the worst ways.. idk if he was scared of the new change, if he’s just selfish or what anyways since then the trust is NOT there. He comes home 1 min later then usual i question him.. anyways for the last 5 months it’s been me questioning him and not trusting him. To add he also LIES about the DUMBEST shit ever... because he thinks it’ll get me mad if he tells me the truth..anyways, we went to Applebee’s last night & a couple sits on the side of us and i seen my bf side eye her.. (im like okay whatever he can look at whoever he wants so i continue talking). As I’m talking i noticed he continues to look at her from a side eye make 3 more times. Enough for me to get annoyed. If he didn’t break my trust before i honestly wouldn’t care if he was looking at another girl. Shit.. we can check a girl out together but when the trust isn’t there & you do that shit right in front of me MULTIPLE TIMES.. then yeah I’m gonna get mad. So i left but before i left i put my water in his food.. and sat in the car for him. He didn’t come out so i left. He’s been gone for 2 days now & thinks this is okay.. BTW the ONLY reason I’m still with this man is because i honestly have NOWHERE else to go until i finish school and get into my career. So please don’t ask why I’m still around when i don’t trust him. If i had somewhere to go this relationship would have been done the first time he broke my heart when i was pregnant. Now I’m just assuming he’s not coming home because he did something and doesn’t want to admit it and hurt me again. Idk need opinions please...