Hi all

I'm a school teacher and will be leaving my school at the end of the year to pursue a graduate degree. I've been at my school for several years and have a good relationship with my principal, who also wrote me a wonderful letter of recommendation. I have socialized with him outside of school at "informal" events (such as Christmas parties), but I wouldn't consider him a "friend."
My wedding is a week after the end of the school year ends (end of June). I will be inviting a few other teachers (those I'm close to), and I'm wondering whether it is proper (or not) to invite him as well.
Thanks!
