7 minutes ago, philo said:

The strain of all this seems to be wearing heavily on Caroline. She was just crying in the bathroom with Frisky.

Earlier she answered a phone call and spent a few minutes alone in her bedroom... maybe bad news from home.

Another theory could be is that Frisky likes to travel with a wing(woman)man. It's always a good idea when you are going to visit someone who lives with another. It gives all kinds of cover and keeps the partner busy while you take his woman to the bathroom for some serious kissing.

2 minutes ago, philo said:

The strain of all this seems to be wearing heavily on Caroline. She was just crying in the bathroom with Frisky.

Park probably told her no Frisky if he doesn't get the guest girl.  Caroline sat on the floor in front of the TV and asked her, she said no.  Then Caroline got up, went into the bathroom and was crying.   (Completely made up speculation in my head, do not take this as fact.)

The strain of all this seems to be wearing heavily on Caroline. She was just crying in the bathroom with Frisky.