I guess if it were me, I would behave agreeable enough, try to be grateful for what was being given me, honestly sad about them leaving.
I would vent in a safe place my negative feelings (not to the friend). I am glad you talked to us about it.
I hope you can keep in touch with this person by email, text, phone, whatever. I believe that if both parties really want the friendship, they will figure a way to keep it going, even long distance. Many of them fade out, I know. I hope this does not happen.
And maybe you'll meet another person.
Even though I don't feel too expectant now of meeting anyone or making any real connections, I am telling myself that maybe I'll find some ppl I can finally connect with. I may leave San Diego eventually and end up meeting some different kinds of ppl where I am going.
Who knows? Life can surprise us.
I do know how hard it can be. I've had to let go of some dear friends, hoping that we could be in touch and it didn't happen. I still wonder sometimes what they were "really thinking of me". lol
Carol