<human>: Can you give me the gist of the text in a nutshell?

Reddit,

What's up? Throw away acct obviously. However, major life altering predicament I need help with. I'm planning on asking my beautiful, smart and highly courageous gf to be my wife. Me (23) her (22) met in college (been together 4.5 years) and planned on becoming a married couple, but things never panned out. Either something was happening in my life or her life that made it difficult to think of the optimal proposal time.

I understand that we are young, wild and free, but I know she's the one. Has always been there for me in my darkest days and shared my brightest accomplishments. Furthermore, everything I've written sounds glorified so why not seek marriage? 

Well, things are not as peachy as it might appear. She's leaving to Graduate school in one month, and instead of waiting 2 more years to ask her to be my wife, I'd rather do it now! As I know she's the right one for me, I just don't know how to approach the situation since she is leaving for a different city, state located across the country. I have the means to visit her whenever, but I know she'll be in her own mode studying. Is it too soon? Did I wait too late? Let me know Reddit.
<bot>: Gf of 4.5 years leaving to grad school. always wanted to marry her. feelings are mutual. thinking of proposing.