<human>: WARNING: LONG!
Like the title says we planned a trip out of town to stay one night, this was a make up trip for one in June where one of the friends was sick and couldn't attend. Myself and friend 1 went and I booked again so friend 1 and 2 could both attend and we could all three go together. Both times I've booked the room on my credit card and trip one was split between friend 1 and I since friend 2 couldn't attend, it was supposed to be us three relaxing before the new school year kicked off w kids and spouses (my husband 34M is a student as well). Now friend 2 got in trouble with her husband and is saying she probably can't go and wants to wait till Sunday night to say yes or no, I work Friday-Monday each week 12 hour shifts and don't want to wait to the last minute. 

Friend 1 no longer has a sitter and wants to make it a kids trip but she has a 9 month old as well as a 10 year old, I have an 8 year old and friend 2 has no children. That would be all fine and well but I was really looking forward to relaxing and baby still wakes up multiple times at night and up for the day at 6am. I want to sleep in and rest. I usually work 60-70 hours a week in a busy ER, hubby is a full time student and my son is also in school plus I take care of my grandmother and all her needs, I need a break. I am the one who booked the room and just feel like going alone now since I want to rest, how to I do that without looking like a total jerk, or am I a total jerk?

Can you summarize the given text in a few sentences?
<bot>: I paid for the room and the other 2 people going flipped the script, how can I go alone without ruining friendships?