So I'll try to make this as short as I can...
Background, we've never had the best relationship, we have struggled with sex more than anything else (I would like to be having sex at least once a week whereas he would want sex once every 3 months if that -we meet somewhere in the middle with once a month, maybe once a fortnight) so I guess that's why this cuts a lot deeper...
My phone broke today so i pulled one of our old ones out of the drawer to use while i get mine fixed. It turned about to be husbands old phone. I charged it and switched it on, and in the messages there were tonnes of unsaved numbers (dating back to 2019 the month after I had our daughter to nov 2021) where his half of the conversation had been deleted but the received messages were all there and were all similar to the attached screenshot. I questioned him this evening about them and he said that a couple of years ago he "made a mistake" and was messaging prostitutes. he says he never actually followed through with meeting any of them.
I asked when did he last send one of these and he said a year or more ago. I asked to see his current phone to prove this, he handed it over and when I went into the 'deleted conversations' tab there were at least 10+ of unknown numbers with message threads. I clicked to recover them and he snatched the phone back saying "that's not fair though". I was like fair????? WTAF!!! He refused to let me look saying I should trust his word but I told him he can hand it over and let me read the messages or we're over! He refused and we argued on and off for an hour or so about it. During the 'breaks' he was on his phone fiddling about with something. After all the arguing he finally said "fine, read what you like!" And handed over the phone, all of the message threads I had seen had been permanently deleted. He refuses to admit that he has removed them, and has stated throughout that it was just messages and no physical contact at any point
AIBU? Should I be taking his word that he didnt actually have sex with anyone else? I'm pretty sure i already know the answer, but it kills me to throw away a 10 year marriage over this, and to disrupt life for my 3 year old