Yep - I'm just about heading into crunch time myself right now... pre crunch has been about 12 hours a day, 6 days a week for the last few weeks - it's going to get worse.
Sadly that's the name of the game in this business - it does take over for a time and it does put strain on friends, family and loved ones. But that's kinda what you sign up for. It's much more career than job and I'd say that you have to devote time, energy, effort and a big chunk of life to any career, CG related or not.
Take some time out if you need it man - we all have to sit back and detatch ourselves for the occaisional reality check. But don't just throw your arms and say 'that's it for me!'. Especially at the start of a new AM term, a great opportunity that many people would kill for