I wouldn’t be so worried about this just yet. It sounds to me like you’re just learning about relationships and how you feel when you’re with somebody. That part is very normal. The fact that you can notice a pattern is good because it gives you the opportunity for control. Since you are just starting college you are going to be with many other young adults in the same boat. Stay mindful of how you feel in the presence of others as you continue to date. What you’re going through sounds very normal, and I wouldn’t label it as pathological.
If after this freshman year you were still unhappy with relationships, I recommend talking to the people at the university counseling center. They can be very helpful and working with you to sort this through.