I'm not super experienced with lesbian relationships, seeing as I'm a guy :P, but it's no different than any other relationship. Some of the most important things in a relationship are trusting your partner, don't go behind their back for info, ask them directly and you will be rewarded every time. Always remember that you can talk to your partner about whatever, that's part of being in a relationship. If you're having issues with something, talk to them about it; they've most likely gone through something like it before or are currently going through it. Most importantly, be there for your partner, this is what every relationship is about. And a side note, stay away from any sexual activities. It's not the same as heterosexual sex, but you're 13 and not ready to be committed to anything like that. Good luck! Please post again so we know how things are going! :)