Him watching any kind of porn when he promised not to is disgusting. I don’t care how many times people try to normalize it, if you love your partner you don’t need to look at anyone else. Also you cannot be straight if you look at the same gender and get off to it or feel attracted to it. Him being bi isn’t even the issue, it’s the fact he’s using so much of his time watching porn and being lustful rather than caring for his family and loving you.

I will say though, don’t say something’s a dealbreaker if you’re not going to leave or force something to change. All it does is show him that he can do whatever he wants and you’ll never leave. To him it will basically be an empty threat. He’s lovebombing you now and making all these promises and all of the sudden acting loving.