Toxic relationship ? Maybe

Ladies quick question how would I know if my relationship is to toxic to continue trying anymore ? Me and my fiance got engaged in Feb and we've take 2 breaks already since then . And I went to a funeral this weekend and found out that he had messaged a girl I specifically told him to never talk to again bc he was trying to get with her before. She didn't reply and I blocked her from his fb. (He doesn't know I know or that I blocked her) well since I've gotten home he's been a complete asshole to me no matter what I say to him . I can ask him what he wants for dinner and he tells me he's just gonna eat chips and dip. And then this morning. He wasn't gonna go to work (he does landscape and it was raining) so he told his crew to go home well his boss over ruled that and told him they are working today. And my fiance flipped started throwing stuff and almost broke our clothes hamper and was yelling about it. I mean I understand why he was upset but I feel like he gets way over dramatic about stuff (not the first time he's threw stuff or threw a complete tantrum basically) I'm at my wits end ladies I need help advice how fo I handle this should I just end it ? Would u try talking to him even tho talking hasn't working the past 500 times ... am I letting him get away with to much ? He is so demanding and tries to control everything I do and tells me what to do and what I can't do. And obviously it doesn't work but idk how much more I can't take. Anyone been through this ? What did u do ?