Wwyd 😒

My husband was caught entertaining some girl he met at a phone store when he went to check on his phone stuff… and it’s been bothering me because at the point when I found this I thought we where good …didn’t expect this at all.. until he fell asleep wit his phone open..: and I looked in it …. ( we don’t have access to each others phone because I caught him acting as if he was me ..to see if I was cheating on him with my friends! so I cut him off from looking in my phone or having access ) but today when I bought it up …in an heated argument… he says “ haha u jus mad because u thought” and he followed that by…” let me be quite” …….. I was taken back by this comment….because wtf that mean!!!!! …… I’m so mad … until I want a divorce… because who says some like that… because what I gathered from this comment is “ haha u didn’t think I could get other woman or some….. what would do you do…. Because I really feel like this boy don’t know who’s he’s playing with! So every time he says some to me I say “haha u thought” ( yea I know childish… but still….) that’s all I have left to say to his selfish emotional cheating a**……. ( well that’s all I think it was….im not sure) I’m to the point where I don’t have any convo left! Because he thought…. He can say that and I be ok

What should I do…..