Exploitation

I feel really bad. I totally exploited a guy's feelings for me to get dinner and a movie and he bought me some lingerie. I really like how he makes me feel. He makes me feel coveted and important butt I'm not attracted to him sexually. And I used to be and we did have sex once. I don't know. All I know is that when I found out that he's like 2 years younger than my mom I felt a little grossed out. I thought he was in his thirties which I would be okay with but he's literally old enough to be my dad. What are y'all think? Do all things that I should just stop? Stop letting him buy me things stop letting him take me places stop letting him think that he has a chance with me? I'm seriously lost right now. Will someone help me?!.