<human>: Can you summarize the given text in a few sentences?

I'm in a long distance relationship with my girlfriend and we love each other very much and talk about our futures with one another.  She's in her first year at a university while I'm at my second at a university 4 hours drive away.
I visited her this weekend for her birthday, which is today, but I had to leave at 5am this morning to catch a bus back to my school.
Today is her birthday but she is feeling very depressed and homesick.  She rushed a sorority, but feels out of her element, because she does not like the party scene.  She has had a tough time meeting friends and her closest friends are her roommate and people that we both know from our high school.
How can I make her situation better and turn her day around?  I have a hard time being happy when she isn't, and I really want her to lose some of her stress.  A lot of the stress is because we had to say goodbye today and I know a lot of it is her homesickness, what can I say/do to make her feel better?

Thanks in advance for the advice!!!
<bot>: Girlfriend homesick/upset the day I leave (her 18th birthday), how do I make her feel better?