Friendstigator

A person who is constantly pushing you into a relationship he or she knows will be a good fit for you.

Dude 1 - "You are my best friend. You know that right?"
Dude 2 - "Yeah, you too."
Dude 1- "We should be thankful for Jay. He was such a
friendstigator. He was the only person to know we would be a good fit and have a bro-mance."

Girl 1 - "Jenny needs to stop trying to set me up for drinks
with Gabby! Dang!"

Girl 2 - " I know! She is such a friendstigator!"