i know how you feel. i'm starting to feel as thought i'm losing my best guy friend too. and believe me its terrible. if you need someone to talk to, i will talk.
i'm so sorry, i was reading this and actually started crying. my dad travels a lot & has to go by plane and i always worry that something may happen. but again i am soo sorry about your dad.
friendships aren't worth competing over. believe me. i've done it in the past. it gets old fast. if your friend can't be friends with both of you it's not worth it. you should NEVER have to compete for a friendship.
i went through the same thing with my bestfriend & eventually he came around. it only took me walking out of his life before he realized that i was the one who was always there, the one he could tell everything to. then he came to me & apologized & we've been fine ever since, and that happened almost a year and a half ago by now.