How to determinate if i should leave my FC ?

[Xx-ReiN-xX]

I left a FC recently which I was part of it for almost a year now and was one of the highest officer. I made some good friends, they still are. I was very helpful toward my FC mates but things turn ugly, I main tank which is the first and only 70 tank in my FC. I help some of them queued for some dungeon run knowing how long DPS queue is. But someone took it for granted and asked me to queued with him. I declined for the first time as I was busy elsewhere. That negative response must have strike him hard as he made some crappy comment about how he will lvl he's tank to 70 now because some of us think they are too important and all. It was so hurtful I left the FC in a whim. Some of my FC mates PM me later telling me how it was crappy of him and understood the situation (they also point out how he's a toxic jerk to others who had also left before I joined) but they can't kick him as he's one of the FC founder. Well now i'm a FC-less adventurer and I don't regret it.

So if you're not happy for whatever reason, just leave.