Appreciation of her after s*x leading to her leaving you.
I would have girls stay overnight and f*ck/cuddle with them all night. I would come out super tired the next day but I thought it was worth it. Then they would leave me after 1-3 times. Afterwards I started kicking them out 5 minutes after sex (with the advice of Heartiste), and BOOM! they were begging to stay with me. Like grasping as hard as they could onto my body as I threw myself off the bed with my strength. Then I would maintain frame, tell them some reason, and kick them out. As soon as I started doing that, I got great and frequent s*x.