Ex and girlfriend drinking while they have the children

[Kayos10]

I picked my children up from their dads this morning. I asked to grab a drink of water to take a tablet quickly before I left and my ex looked shifty and said the kitchens a dump. Went in to find what looked like a party had taken place. I said to his girlfriend blimey did you have a party last night? She said no so I asked is all this just yours and (ex' name) empties? She laughs and said it's been a long week. I counted at least 3 empty wine bottles and around 10 empty cider and beer cans. My ex has always been a heavy drinker and this was one of the reasons we split. But am aibu to be pissed off that they're clearly getting rat arsed while they have the children? I have noticed it and mentioned it before but to see the aftermath this morning is really bothering me.

Have you never been drunk whilst you've had the children OP?

Not whilst solely responsible for my children no.

You weren't sensible to influence your ex, why should she be?

I have been single for 14 years now. I didn't drink at home until the eldest was old enough to know.our address and able to call an ambulance in the event of an unforseen emergency. I still don't really drink at home becauae in the meantime one of my children was diagnosed with type 1 and it really does need someone to be 'with it' 24/7. I think nothing of going out and drinking but only since my eldest turned 18 and he is around and not drinking in case of issues with the youngest. I wouldn't think to complain that my ex drinks unless the children indicated it was somehow a problem for them. It is clear from what they have said, he too is more careful because of the youngest's condition.

YABU unless the children were clearly uncared for and/or one of them has a condition that needs constant monitoring.