Coming out?

So here's the deal. I'm seventeen, and I'm gay. My girlfriend lives an hour away and she just lost wifi access, and she doesn't have a cell, so there's no way to communicate with her much at all. We've both dealt with a lot; I have anxiety and she deals with depression. Basically, it just kills me to not be able to talk to her, at least a little. Her parents don't know about us, and she fights with her parents, which makes it very unlikely she'll be allowed a cell or wifi access anytime soon. BUT, she may actually come up to my town to go to the beach and see me, with her aunt, this coming weekend. So, I sort of see this as my opportunity to supply her with some sort of device for us to be able to communicate thereafter, as over-planning as it may seem.. SO, I could give her one of those $50 prepaid phones for the meantime. I would have to buy the $50 phone and a $25 dollar card for a month's worth of unlimited texting... However, I don't have $75. I just don't. I've asked my parents for "some money for shopping with friends.." and they're giving me $40-ish. So, tonight when I see my grandmother I was considering asking her for $35, which I know she would give me. Except, I can't just say "Can I have $35?" I feel like I would owe it to her to explain how desperate I am, the whole situation, and be totally grateful. Is it okay that I would be telling her that I have girlfriend (she doesn't know I'm gay..) before even telling my parents? Is that rude to my parents? I'm close with them somewhat, and I know I could and should tell them soon... but I'm not ready. With my grandmother, I sort of am. But I don't want her to feel badly that I told her and not my parents yet, and I don't want to hurt my parents when one day they find out my grandmother already knew. Someone suggested to me that I don't need to say she's my girlfriend and that I'm gay - I could simply ask her for the cash for a very close friend. But just, with the way things are, it would be odd and she would wonder why I didn't simply ask my parents. In other words, I feel as though the only way it would be "okay" to ask her for the money is if I tell her why I really need it, the whole deal. Although I also know I shouldn't treat this is a reason to force coming out.. I don't know..

where are you from? Phones at Wal-Mart are 20$. If you need the money and your grandma asks what it is for I would tell her It is for you to buy something special for a friend and that you would help out extra with chores or errands in exchange or pay her back a little at a time. Your girl friend should try to come up with some of that money as well. Your 17 you should be able to do babysitting jobs or lawn care jobs for extra cash.