When I was in college the first time, I DIDN'T go away to college because I had a boyfriend I didn't want to leave behind. That didn't work out. We eventually broke up and I ended up stuck in a dead end job.
When I went back to college a second time several years later, I decided to go away to college because it was the best choice for me (and my boyfriend had some options in the town I was looking at). I went to improve myself - my boyfriend coming along was just icing on the cake. We ended up getting married and are expecting our first child in a month!
I think that this is really similar to the "what to do AFTER college" thing. Either way, don't let a boyfriend be the determining factor on what is going to be best for you in the long run. Don't just have a back-up plan, have a plan where your life comes first. If the guy is the right one for you, he will be as happy for you as you will be for yourself and won't be going anywhere.