I'll try to stick away from (sex, and all those others) Since I've trully had up to 10 GFs, couldn't keep my relationships, I've learnt from each break up. 1. Respect her. 2. Make her feel like to luckiest and most special girl in the world. 3. Text her, but give her free space. 4. Have fun & don't screw up. 5. Don't cheat on her. 6. Always, be there for her. I think, this advice will lead you to sucess.