No, you're not losing your libido

1. It's possible to be attracted to different boys in different ways. I've had YFs that meant the world to me but didn't do much for my sexual fantasies. If you were actually losing your libido, it would be across the board, not specific to one boy. 2. The love thing lasts as long as you dangle on the edge of possibility. 3. The mood swings sounds like an individual thing for him. Every YF comes with their own personality quirks regardless of age. Relationship experience can soften their edges. Just remember that he has his own world and his behavior towards you might not be about you at all. 4. Yes, it sounds like he takes you for granted. I can't blame you for bending over backwards for him, but that's not a foundation for a relationship. The key is to be reliable, emotionally available, nonjudgmental and honest. If you're the adult in the relationship, it's your job to be emotionally stable rather than needy. 5. The only cure for jealousy is accepting that everything he does is out of your hands. Just try to appreciate whatever comes your way. Maybe someday he'll recognize its worth if he sees he can depend on you.