You had memories lost after falling down a cliff while rock climbing, you called your boyfriend to pick you up but he acted differently until he knew your condition, he seems to be hiding something from you, which was the fact you guys had already broken up but you don't remember it so he took advantage of it without you knowing you already have a new bf

“I'm glad you called me after you've woken up from your fall, i was so worried about you i dropped everything i was doing and came here”

Joel said to you while you were laying in a hospital bed