I enjoy travelling myself....there are a lot of places I would love to see, Europe being one of them!
But, like I said, this would be a 3 month "trial" if you will. If I was ever in the position to not have to work full-time I would definitley have to have something...part-time or volunteer, like you said. Believe me, I strongly agree that apart time is healthy for any relationship! I don't want anyone's head stuck up my butt 24/7 or vice versa :)