guilty secret

so i was working out a new client today and we got pretty close, chatting about our lives. she mentioned she was single too and wanted to meet someone nice. i told her the truth that i wasn't looking for anything serious right now but she was really into me. it felt wrong but kinda thrilling at the same time. after her session i ended up messaging her on dating apps just to see what would happen. still feel bad about misleading her though. anyone else ever done something similar? thoughts?