Had my first intimate interaction.

I’m 17 and I recently broke up with the loml (im just another teenage boy in love), havent been able to move on for 4 months now. I had a close friend of mine come over today (along with other friends as well), and we were put in a team to hide the treasure in treasure hunt. As soon as it happened, we locked eyes (accidently) when the door was closed, started making out and i only used my hands to caress her (that too with consent). I honestly dont know why i told all of this here, probably because i dont have anyone to tell to. But i feel guilty to my ex i havent moved on from, feeling like ive decieved her. Can anyone please help me arrange my thoughts?