I'll take you up on the sushi offer. No expectations
LOL!!
I have done that in the past (asked H to do something, got a wishy washy reply, and then regretted asking him). I don't think anything we do is 'wrong'. There is no list of instructions here. What works for some might not work for others. You put that offer out there, and calmly retracted it when you saw she was uncomfortable. Wait and see. She might just say something about it soon, maybe she has thought about it and wants to go...