It was a bit wild. Wild and crazy.... :D

That works. I didn't know if we were going to have them stick around a bit longer or just take off.
Either way, a proposal works. Especially as her father guesses who Summer is and knows she probably would like to see it.
Though, how she got there, he has no clue. 
Maybe in the Mini Summer episode, he sees the Doctor and the two talk about it

That you love the Doctor. *nods*