Relationship Trouble :(?

Well my girlfriend and i are getting ready to move out. Im graduateing and her parents are moving to Fla. She doesnt want to go, so we'll be staying with my parents over the summer until we get an apartment, because she has another year of school left. (Added info- we've already been together a year..) Things have ben really stressful becaue we are a couple and we've been hiding it from some family and all friends, so its hard to go day to day and pretend to be just friends. Well now her parents are moving in a week, we havent found an apartment, its hard to hide our secret and we never get to be "normal" around her family because she has younger siblings who dont know about us. (Both of our parent know) So we are under some major stress right now... the "fire" isnt as strong as it used to be, we're snappy with each other and are short patiented. We get into a lot of little arguments and we feel exhausted from everyhting at the end of the day. How can i be the one to make things better for the both of us? We love each other so much, yet we're kinda tearing each other down. I just need some stress relievers until we can get things figured out.