u/Infamous-Mushroom757

I (36m) met a woman Red (40f) on a dating site. Red and I had just started talking the day before. With Red, I felt like I could talk to her about anything. I only stayed for two nights and we connected on the physical level a lot. I have a high libido normally. Ever since I got back home, my libido is non existent and I feel content. I don't have the urge to masturbate anymore. What could be the cause and what is most likely the cause?

P.S. I am still in contact with Red and we are trying to see where this relationship can go

TLDR: I had a two night stand and ever since my libido is gone. What could be the cause and what is the most likely cause?