Broke up now hes unsure half the time

almost 8yrs together, have a child together. Shortly after our son was born he had an emotional affair with a coworker. We had a couple arguments before this about his abuse of porn but this made me feel utterly betrayed. Especially since half the time he seemed to interact with her in an inappropriate way on purpose to rile me up..he never did anything physical though. We had fights, broke up, got back together, had quite a few arguments since then as I was stuck in bitter-mode. Recently we broke up and got back together after about a wk. He says he wants to try 1 more time but isn’t sure what he really wants. We have a good time when we’re together but when he’s at work or I am, he turns sour. Says I should just move on and be happy with someone else. He acts jealous if he thinks I’m talking to other guys even though he’s talking to other girls (we agreed it was just as friends) We both previously agreed about how we would be great together again if we just stopped “the bull****”. I have worked on my faults and attitude and want to get back to a place were we can love eachother again. He says, and does kinda try but at the same time thinks we’re just gunna go back to arguing all the time. Sometimes I feel he wants to work it out and be together, other times I feel he’s just staying until he finds someone else interesting. I try to tell him that I will move on if he’s really unsure about working it out but then he goes back to saying he doesn’t know what he wants. Im doing what I can to be more communicative but I feel he’s holding back. Should I keep trying and see how the future goes or just let him go??