So, I have a really good friend, he's like my brother, and not only are we good friends, but we work together in the same band.
He's in love with a girl who uses him for a lot of things. Driving her places, going to Starbucks, taking her to her rehearsals, hell, this past weekend he's skipped rehearsal for "paperwork" which ended up being him going to Costco with her instead during the time we were supposed to be rehearsing. He does everything for her, and cares about her a lot, but she has made it clear she's not interested, and has gone out with other guys while using him, and done things around him while still making him think she's interested even after she's made it positively clear she doesn't want a relationship.
I really care about him and want the best for him, but she's bleeding him dry, and I can't take it anymore how much she's used him and how much it's taking him away from his other priorities. Unfortunately he's leaving soon because he's gotten a cruise ship gig, but I really want to talk to him about this before he leaves, try to show him some support, but mostly try to get him out of this rut.
What should I do?