My partner enjoys drinking. I'm borderline teetotal, so we have very different opinions/levels on this. When we had children we agreed that he could do as he wished in the evenings as long as it didn’t impact family life. This includes not shirking responsibilities, like getting up with the children, when hungover.
This system is quite rigid, but with very young children and my lack of sleep, I can't handle others' irresponsibility, especially on weekdays. I imagine in a few years it'll relax, but that's not where we are right now. Despite a few hangovers, he's been good about sticking to our agreement and managing his responsibilities. We usually give each other a lie-in day most weekends and allow for planned fun (i.e. if there's a work night out, birthday, or a late night with friends etc) without worrying about early mornings so there is still capacity to let your hair down pretty regularly.
However, last night (Sunday) he stayed up until 2 a.m. and drank so much that he was vomiting this morning. He then took a long shower, monopolising the only bathroom and rendering himself unavailable. On a Monday morning, when we all need to be out by 8 a.m., this caused chaos. If I'd known he wouldn't be available, I would've adjusted my routine accordingly (got up earlier for example). Instead, I ended up rushing and snapping at the kids, which I now feel terrible about because it wasn’t their fault.
We managed to get out the door and to school/work, but we were all late and harried. Over lunch he's just nonchalantly said "Thank you for giving me space this morning."...and I honestly didn't know what to say. Something about the phrasing implies there was no fault, as if everything the rest of us did this morning was out of kindness rather than simply coping with an unexpected situation.
He doesn't understand why I'm upset. He doesn't see how 'thank you' and 'I'm sorry' are different, or why in this situation an apology would have been more appropriate given the inconvenience directly caused by his actions.
Am I being unreasonable?
YABU - 'Thank you' is as good as 'I'm sorry'. The acknowledgement is all that matters
YANBU - They're different and in this situation 'I'm sorry' was more appropriate.