My partner left early hours of Wednesday morning to go to benidorm for a stag do, we’ve been in a relationship for 2 years and he’s been on a few holidays without me in the past and as he was going on this one with his dad, uncles, etc I had alot of anxiety as I’m so far along but I just trusted that he would be back before I know it & that everything would be okay. He has an old phone here still connected to his instagram and messenger and yesterday evening I hadn’t heard from him in over 7 hours which is unusual for him as anytime he’s gone away he’s always FaceTiming me and texting or calling me. After getting a horrible gut feeling I decided to turn that phone on and a notification on instagram came through right away from a girl living in Benidorm, all she sent was ‘😏’. After clicking on the messages, he’d sent her a message saying ‘don’t you forget I’ll be waiting’ to which she replied the emoji above and his last response was ‘dirty girl’ which never got replied to. I haven’t slept since, I confronted him immediately and all he can say is he is ‘sorry, it won’t happen again, I’m an idiot, I didn’t actually do anything it was just a stupid conversation in a bar and then I sent a stupid message’. Long story short after this explanation, we live together and I financially don’t have the means to just get another property this close to my due date. I know staying isn’t optional, he did this to me whilst I was at home worried about him and he had been in Benidorm less than 24 hours and that’s all it took for him to cheat on me whilst I’m heavily pregnant. I just want advice, I don’t have any friends, my mum is all I have and she’s aware of this situation but she’s spent all day with me and I just want help from someone on here on how I even handle this. I’m broken, he’s home on Monday which makes me feel even worse knowing I have to face him eventually, I’m forcing myself to eat for my baby girl, I’m so alone and scared for the future, I’m just destroyed emotionally and mentally and I haven’t even got closure because he’s still lying about what happened in that bar to lead to a message like that being sent and in his version, he hadn’t actually seen her since which doesn’t stop the pain of the fact he would have had I not found those messages through getting an intuition. Please help