Is it normal that an older woman wants me to move in with her

I’m 19. She’s 47 and my friend’s mom. She’s been molesting me since I was 14. I have a beautiful girlfriend that’s my age, who is much of what I’ve always wanted. My friend’s mom wants me to move in with her now that I’m an adult. She said that I wouldn’t have to work if I didn’t want to, and she’d buy me a car, and pay for lots of things for me. She said that I’d have to dump my girlfriend forever. I love my girlfriend but she costs me money that I don’t have. I’ve borrowed money to pay for things for her. My friend’s mom said she’ll pay that offf for me. So, I trying to make a decision. I do like my friend’s mom. She does everything for me sexually, and I guess that I’ve been corrupted and spoiled by her to the point that I need her. She’s forcing me to decide and she has me by the balls. I’m leaning towards her because she’s a lot to give up. What should I do?