<human>: I'll try to keep this as short as possible.  I am an male, early 20s, dating early 20s female for just over 2 years, the latter of which has been long distance.

I really love this girl.  Its incredibly low maintenance, even the long distance, and we have a ton of fun with each other.  The problem is that lately I have been feeling the urge to get out there and enjoy my 20s a bit.  She is not putting pressure on my commit to anything super long term, but sometimes, I just feel like i have fallen out of romantic love and want the thrill of the chase again.

If i was 30, I think I would be over the moon happy that I had found someone as great as her, but right now, i have a desire to date casually and just meet some new people.

The obvious answer would seem to be "if you are thinking these things, its already lost" but long distance is difficult and at my age, I am sure anyone, no matter how much "love" they were in, would feel hormonal pressure.

I would love to hear any wisdom you might have on whether I should tough out long distance or end it now.  And if I end it, is it even possible do it in a way that leaves the door open in 5 years if I made a mistake?

Can you give me the gist of the text in a nutshell?
<bot>: Love(d?) girlfriend of 2+ years.  Last year of long distance, have felt urge to date casually, feel the thrill of the chase.  What now?