Cheating??

De

I’ve been doing mental gymnastics with this and at this point I need someone to just tell me if I’m being crazy. My fiancé just recently started a new job working night (he can’t have his phone exept for he break at 12am). Anyway I started to get this gut feeling like something was wrong/ off, couldn’t sleep, stomach hurt. I even told myself it’s a coworker. Needless to say I was on his phone because he got a text while in the shower and normally I just read them to him well this one happened to be from a coworker who was obviously flirting. I didn’t say anything just brushed it off, he didn’t flirt back much but a little. A few days later he’s laughing at his phone and I asked what it was and he said someone called me daddy so I asked who. It’s good to note that where he works everyone goes by last name, he said her last name, not knowing I knew who that was. Again checked his phone and he’s texting her throughout the night when he told me he can’t have his phone and she’s talking about missing him. Now I’m sure I’m jumping the gun but he never shut her down, he never told her that he was engaged (with a kid on the way) and now they’re snap chatting back and forth, he hides in the bathroom for 30-45 mins. Am I crazy or should I start to worry a little