My trust in him is gone

(t/w alcohol and bodily fluids)

It’s completely gone. We have two kids together (2 and 1 years old) and this has never happened before and I’m not sure what to even do.

So my fiancé went to hang out with a coworker today after he got off work. He takes this guy home sometimes and they’ll just sit and hang out (at least that’s what I was told). They work night shift so he doesn’t get off until 6:30 am. Fast forward a few hours and I call him around 8:30 to see what he’s doing and when he’ll be home. I really needed a break today and he was suppose to take the kids while I took a bath and had a chance to get ready for the day and he said soon. 9:30 rolls around and he’s still not home. I texted him and asked again when he’d be home and if he was okay. He told me “soon” again. I was getting upset and just decided to get ready since it didn’t feel like he’d be home anytime soon. I tried to let it go though because he never really gets time to hang out with friends.

He finally gets home a little before 10am and he’s drunk! Throwing up and passed out in his car! I’m so livid! He was drinking in the morning, he drove home drunk, and then he threw up all in the car and passed out! He has never done this but I have been telling him about his drinking for a couple months. He would come home with a 6 pack of beer and he’d drink two before going to bed which at first I wasn’t too concerned about but then two beers became two beers and a couple shots of vodka. But he’s never gotten so drunk he couldn’t function. We came to an agreement he couldn’t buy anymore liquor because it was starting to get in the way of family time and he agreed he needed to chill out on the drinking everyday. But I guess he’s been drinking with his coworker and lord knows what else.

I feel like I can’t trust him anymore. We have two toddlers and I had to go and take care of him and let him pass out on the room. This coworker is known for being a drug addict and I’m so worried that he’s also done something besides alcohol because I’ve never seen him so out of it and just gone. I can’t even have a conversation with him until he sobers up but I don’t even want to talk. I’ve never had a reason to not believe him but this time I just don’t. He chose to drink and do whatever else instead of spend the little time he does have with his family. I think he’s an alcoholic and I just don’t know what to do at this point. I have enough to deal with let alone take care of a grown man in addition to our two littles.

Am I over reacting? Am I being too harsh to want to end things?

I don’t have friends or family I’d want to talk about this to with so any advice is much appreciated