First off I’m Mormon haha

This guy he’s my missionary and he’s newer in the field been a missionary since May and he’s in my area till aug 6 and leaves to Italy to serve the rest of his mission. In the short amount of time he’s been my missionary I’ve gotten to REALLY REALLY like him and I’m very certain he likes me too but with how strict the rules are for missionaries we can’t act on it nor tell each other or anything. He makes my heart race, gives me insane butterflies, and just really makes me happy. I’ve honestly cried kind of a lot because he’s leaving and I don’t want to lose him. I don’t know what to do... the one thing I can think of is ask him for his email but even then how do I go about that? Someone please help me...