That's a tough decision. If you're living a healthy lifestyle and he's not, then your reservations about the here and now make sense. I don't believe becoming a caregiver prematurely is how most perceive their future lives as partners. Are there other things(aside from the other post which I read before this one--which this makes those reservations a lot clearer ) that give you pause?

The call from the sister has got to be one of the more curious pieces of information that I've heard of a sister doing. Are they close? If not, keep in mind, there's his side, her side and the truth.