BART WHO?

Bart Bass is Chucks father who supposedly died around season 1 but is back? Wonder why he disappeared?  In season 6 he was being investigated for fraud and for doing something illegal with an oil company. Chuck wanted to ruin him and let everyone see the real him but Lily his wife thought he was just amazing and did no wrong but come to find out he was crazy... Really who knows what happened to him?!

YOU KNOW YOU LOVE ME,
XOXO,
GOSSIP GIRL