The relationship is going okay right now. We've been together for two years. The problem is: i'm only 18 and she was my first girlfriend. Lately I've been having doubts, wondering if I really want to stay with her for the rest of my life. I love her, but I keep wondering about other women and I get the urge to see whats out there. I feel like a giant dick, but I just can't stop wondering. She's going to move in soon, and thats a BIG step. I don't know if I want that anymore. We've made tons of plans for the future and I don't know what I would do if I dumped her and wrecked all of those plans, but I still want to get out there and date around. What should I do? Take it slow and see how it goes? Dump her? Swallow it up, and just stay with her and live with any regret that may surface late?