Not a fuck up, you met a seemingly nice soul today who had enough to give. It kinda upsets me that.my friends dont let me help them, despite me making way more than most of them and they are clearly struggling. Personally id just say thanks and take the W friendo. May seem weird but somrtimes its good to let people feel like they helped, even if you dont "NEED" it.

Either way, its good that you at least talked about it. If she knows she may be able to help bridge that gap and make interacting with her fam more tolerable? If you agreed to go maybe make a goal of the trip to better understand the family dynamic? Maybe your perceiving it in a way thats worse then how they see it? Idk just kinda spit ballin here.

Its like... okay to not be big on your gf's family... my gf like despises my mom... it is what it is, you shouldnt have to like walk on eggshells about it. I feel since she knew you were already not super i to her fam she maybe should have been more prepared for a no to the trip thing?