Older Boyfriend- going off to College

Er
So. Here's the deal. Last February, I met this guy. He is perfect. That's honestly the only way I can put it. He is so sweet and kind and very polite. Anyway. Enough with the mushy gushy crap. Last year when we met he was a junior and I was a freshmen. We have been together for 6 months. He is now going into his senior year. We have been talking about the future, since he is obviously planning on what to do after highschool. He wants to go to college, and I fully support him. The only issue is that he wants to major in Outdoor Recreation in Colorado. We live in northern Newhampshire now. Of course he told me this and he wanted to know if I thought it was ok. Now, I certainly love this boy. I love him more than anything. But I won't trap him. If he wants to go to Colorado for school, I will fully support him. It's just going to be really really unspeakably hard to not see him for 2 years (until I get out of school, and supposedly his major only takes 2 years.) We have promised (I know I know) that we will be completly faithful.  We have committed ourselves to one another and plan on working through any issues together. Have any of you had to deal with a similar issue. What did you do about college and relationships?
​Thanks