Explaining why Poison was popular before it had any chart toppers, etc.
When they first get into the hot tub and start drinking they start to see a lot of crazy shit. What they are actually seeing is other unwitting time travelers like themselves flying through time. They bear guy is one of these people.
Also, the "It's Not You, It's Me" thing could have annoyed her.
Which could explain the lets never speak of this again reaction.