I think in my CF prime (that is when I was playing the most) I was probably near my unhappiest in terms of RL. I was a 'popular' guy (whatever that means) in High School but then in University I kind of fell into a shell when I got hooked on CF. I was also away from home and in a new city which certainly influenced that, but it's hard to say whether it was CF that caused the unhappy change or rather I was unhappy so I let myself fall into the sometimes too intensive world of CF.
Now I think I've managed to balance my life a lot better and I only play CF when I have free time (I had a lot the past few weeks playing Philis :) ) But I think it's a curious question whether people play so much CF because it's so great or whether they play so much because they have nothing else to do on a friday night. That's not an accusation, but rather an observation. Regardless, there are worse things to do than play CF.