What should i do? My boyfriends eyes dont close anymore when we kiss. : (?

One day me and my boyfriend got into an argument.... And i kissed him to let him know i was still heated but i forgave him. His eyes didn't close. we have been seeing each other on and off now for like 3years. and when i kissed him i felt the lack of pion. Granite we were both pissed but i wouldn't had mattered right? I think i'm still in love but i'm at a loss right now, i don't know how i feel anymore. I just need someone else's perspective. Maybe someone who is wiser in this type of situation. (we are still young, but trying to keep hope alive)