Wish I would just think the right way (final version)

So I met this girl about 6 years ago in the summer of entering high school and we started dating at a very young age our relationship lasted for a year and a half and this was both of our first real relationship. We ran into alot of problems and we broke up for 3 years but stayed in touch pretty much the whole time and hooked up with each other a lot and told each other we liked each other still. In our time apart we both worked on what caused a lot of problems with our first relationship (for me a big issue was trust and being jealous) and then I re asked her out a few months ago and everything's been going great and we have this seemingly perfect relationship which I am very thankful for. We talk abou our future a lot and getting married even tho we just turned 20 in seperate colleges and I think we both could really see it happening like that the only problem is I constantly feel like I want to hook up with other girls and things like that but I don't want to be a cheater. I know it sounds stupid but I'm scared if I do stay with her and we keep this great relationship up for the rest of college and move in together I will always hold it against her that I didn't get to go out and meet new people and try new things experiment and such and basically miss those young party years. I don't know how to sort my head out I just want to love her as much as she loves me and not have those times where I think I want to go mingle and such with other girls. She is the only one I would currently want to move in with and such in the future and I don't want to lose that but I can't help the way I feel even tho I have tried to change it. I know she really loves me but i cant help but feel that if i went out and did my thing then got it over with that i would feel like OK I did that but what i really want is this meaningful relationship with her. Obviously i cant tell her this or ask her for a break so we can each go experiment since we've pretty much only been with each other.

Headache,.. your great, meaningful and wonderful relationship with your GF doesn't mean enough to you. The fact that this is a problem should be telling you are not ready to go the next step with your GF because if you were, then you wouldn't be here on the forum. You wouldn't worry about missing out on partying and meeting other girls. Your GF would be your whole life and you would be experimenting with her, you would planning it together step by step. If you constantly think about hooking up with other girls then you're 'there' already....but do it single, that way you won't be a cheater! And I'm sorry, but realize that you're just not mature enough to commit fully to a meaningful relationship right now.