I wanna know will Blair and Chuck together at the end of the season 2?

Uhm, I'm not sure what you're asking because your actual domanda & your commento are 2 different questions...

1. Season 2 isn't over yet, so they don't sell them yet. Normally te can watch them in the video section on fanpop, o te can find them on youknowyouloveme.org
2. Since S2 isn't over, we aren't for sure whether CB will end up together, but with some of the spoilers we've seen, I think they will.

If te want to know the spoilers, let me know, and I'll point te in the right direction.

te can watch it on wwww.tvduck.com
and we don't know about chuck and blair because the seaosn hasn't ended yet, like Shandii already detto (:

most likely i mean the do Amore each other