So, TRgirl called me yesterday. First, I would like to point out that she did not tell me about the jobs she's been interviewing for, or about how her trip to the Albany area was last weekend. What we did have was the following conversation:

TRgirl: Does Independence Air assign seats, or are they like Southwest?
H2O: They assign seats.
TR: Oh. 'Cause [the BIL] and I have to fly to Syracuse next month, and Southwest doesn't go there. Also, it's cheaper to fly Independence from Dulles to Syracuse. But we can each save $25 on the ticket if we join their frequent flyer club (True that! I've done it.), but then we have to book separately. But then we won't get seats together.
H2O: And?
TR: Well, we can't sit together.
H2O: But, it's like an hour and a half flight on a 50 seat plane.
TR: But we won't get seats together.
H2O: $50 savings.
TR: But we want to sit together.
H2O: But you see each other everyday. What, he's going to meet someone else on the plane?

I think I managed to suggest if the seat thing was such a big deal (still flummoxed here), they don't have to choose seats when they purchase, and can maybe get seated together if they check in together.

My confusion may stem from the fact that I don't really need to spend every minute of my day with anyone. Hell, I lock the cats up when they annoy me.