If you get an opportunity to travel...do it. You will never regret it and whatever thing (or person) that is holding you back will be there when you return!
After my junior year of college, I was able to backpack through Europe for almost 6 weeks. It was the trip of a lifetime. Myself and 3 of my girlfriends armed with Eurail passes and youth hostel numbers went to places we had only read about. Luckily I had no boyfriend at the time. I had broken up with my now husband (we were taking some time...we did this a lot) so I was completely free and able to have fun without missing anyone at home (OK I did miss him but it did not impede my good time). Never again in my life will I have this opportunity to take off for 6 weeks and just go. I am glad I did it and I want my children to have this same opportunity.