It is important to make time for the important people in your life. Scheduling time together doesn't sound all that romantic and spontaneous, but it can be one of the most useful ways to make sure you stay connected with someone.
My girlfriend and I came to this conclusion early in our relationship, and we made sure to schedule time for each other during the semester. We agreed that we would meet for lunch on Mondays, get together with our group of friends on Wednesdays for movie night, and save Friday nights for date night. Yes, I do have those little fantasies about my girlfriend surprising me with flowers and chocolates sometime when I'm getting out of class or something, but relying on that sort of thing to maintain a relationship is unrealistic. We know that we'll have time to see each other three times a week, because we make it a point to do so.
It can also be important to remember to spend time working on yourself. I can certainly understand the feeling when you've found someone special and you want to be together with them all the time, but you still have to take care of you. The person that's right for you won't want you to give up your favorite hobbies to stay with you. The right person will actively support your hobbies, and that also means giving you time to pursue them. You should be willing to return this favor for the right person. This lets you both have time to enjoy your favorite activities and it can help provide stories to discuss when you get together again by catching up on what you've been doing with your free time.
As I mentioned before, my girlfriend and I scheduled time to be together during the week. We also scheduled time to be apart so that we can pursue our own interests. For her, that means hanging out with her family, some of her friends from high school, playing video games, or painting. For me, that means jumping on a bus, riding it to wherever, and exploring a new part of the city. When we get together again, we talk about the things we did. She enjoys my stories of exploring the city, and enjoys laughing at how clueless I am when it comes to painting. I enjoy hearing her stories about hanging out with her friends, or hearing about what her big, cute, happy, and not too bright dog did when she came to visit her parents.
Time apart doesn't always mean a total separation. We still occasionally text each other when we have something to say, but we both understand that the other may be busy, so it's usually quick check ins to let her know that I'm not lost somewhere in a bad part of the city, or to see how she's doing. The time for us to work on ourselves is just as important as the time for us to work on us.
Tagging @windflowers as requested.