Originally Posted by
Pinky
Um, I'm a girl and that sounds like a really irrelevant and typical male question so I'll give it a smart@ss answer: Obviously good enough for him to live with! (you will note I said she is his live-in girlfriend)
Not irrelevant at all, and live-in certainly means nothing. What if he looks like a walrus? Just the fact she's live-in doesn't answer up's question.
As to the topic of the OP, I'll jump in the fray, but go the other direction. It's none of your business what arrangements other people have. If both of them are ok with what he did, then great. If not, well, I guess he'll be having a "blue" vacation. Either way, the problem will resolve itself.