One of my brothers married on Valentine's day

I see no problem with this short interval of contact, especially since you've been "therapy free" for 3 months. There are many areas of the country where there are necessary "dual relationships" simply because the towns are so small the clients and T run into each other at church, the store, at the movies etc. I also see no reason for you not to return to this T in the future.

May your marriage be blessed