I hope I can live up to this

Next year is already scaring the shit out of me.

Other than the usual pressure (grades, parents, work, high school in general) there will be colleges and a ridiculous schedule and being a good 'leader' in band and now this:
Juggling possibly the most complicated friendship I've ever had and all of my other friendships.

So, there is a huge history with him. For the sake of this blog (and because I feel weird writing about people on a public forum) we'll call him Mr. X.

A Brief Overview
Freshman year: we had Civics together and I couldn't stand him
Sophomore year: we had Phy. Science together, and I thought he was really funny and developed a crush (ugh, of course I did, right?)
Junior year: we started texting a lot, and then talking on the phone A LOT, and I really thought it was going somewhere, but I found out that he was REALLY interested in this other girl, although we had been talking for 4 months. so, yeah, I ended up really hurt, but somehow... we ended up staying friends.
This summer: We still talk pretty often. Mr. X is really worried about having close friends next year, as all of his (except me) have graduated and are going off to college.
Right now:I invited him to go to the movies with me and my friends tonight, hoping that he would be able to easily integrate into the group, and maybe he wouldn't worry so much about next year.

Wellll, when I told the other girls going to the movie (oh, we're going to see Eclips :P), SB seemed ok with it, Steph was... cautious but didn't want to "preach", and Emma seemed downright upset about it. She and Steph don't want me to get hurt like i did when we were talking. but that's not going to happen.
NOWWW Mr. X is concerned that my friends don't like him (which I don't think is the case. they're just looking out for me), and his whole "I wont have any friends next year" thing came up again today.
I told him not to worry, that he would have me
he said that my friends don't like him so we won't see each other that much
I said that I care too much about him for that to happen. (Which is totally true. I would be SO SAD if I never got to talk to him anymore)

But now I'm afraid that I won't be able to live up to that promise I made. I'll still have school, and my job, and band, and being Key Club President, and working with Beta, and worrying about college, and my ridiculous parents, and all of my other friends.

What if I can't be there for him next year??
Should I have not said what I said??