My situation is a little different, I'm the hinge of a vee, but we're very close to an emotional triad. I feel very jealous when they hang out together, whether it's virtual or in real life. One lives around the corner from me, and the other is a bit less than three hours drive away. They adore each other, and were friends before the three of us were friends.
I think your emotions are just fine. Let them feel and blow on through. Long distance can be challenging.
Love is that condition in which the happiness of another person is essential to your own...
Robert A. Heinlein
Me: female, bi, (formerly hinge of a vee)
with FirstBoyFriend (FBF)(moderately long-distance)
and no longer with CurrentBoyFriend (CBF)(who lives in the apartment building next door)