I love flying, but I love my family more. After a while it's just a job, albeit a pretty good one most days, which is why you see so much negativity on the boards.

If you're already hesitant about time away I would suggest you very strongly consider the teaching gig and fly for fun on the side.

Seniority is everything though, and if you get started soon and stay in one company you can have a pretty good QOL in the airline biz, commute notwithstanding. Good luck.