My group leader assured me he does this all the time and that other alliances are cool with this. Last night a party of us were in an alliance to go farm lights and once we had enough to then go do some VNMs. From what I remember my group leader saying he told the alliance leader we just needed lights and we would stick around for the VNMs, and the alliance leader was cool with it. It was gonna be a long-term party, however the alliance leader decided to leave near the very beginning and while my party was branched out doing some easy NM farming and frogs for TE's the rest of the alliance decided to head out to farm xp on worms. After we had enough lights my group leader thanked the alliance for the lights and we dissolved our group to go and do some VNM farming on our own since we weren't there to xp. I was a little shocked at what he did, so I asked him if he was supposed to do that and he assured me that it was.
However the new alliance leader didn't think that, she was a friend of mine and we'd been doing things together for a little while and just starting out to make a good friend bond. She told me what my group leader did was, in more nicer terms, a terrible thing to do and was just there to farm lights, and despite me trying to assure her that was the norm she was very angry and resulted in our friendship dissolving.
Was what he did ok or was it a wrong thing to do? I'm very confused now and have lost a good friend and I don't know whether she was overreacting or if she was right.