Need some advice

So my husband had conversation with one of his coworkers and lied about the whole situation and they ended up at a bar together last year. I told him I wasn’t happy and wanted a divorce and he said he didn’t and that if I filed he wouldn’t sign. 🤦🏽‍♀️ he been trying to have sexy time 24/7 and I’m just not in to it I have a 5yo a 1 year old and a 2 month old I’m always chasing and doing things for and I just honestly can’t stand him. So when I ignore him for sex he always gets mad but honestly I can’t get over what happened because I was lied to and I don’t know if they were together or not. I’m just stuck and don’t know what to do