<human>: Could you distill the essence of the text into 1-3 sentences?

I'm a 19 year old girl who was offered help to pay for my college classes by my boyfriend's, mom's ex boyfriend. He use to be a trusted family friend, he's 40+ by the way.
I thought he just wanted to help me, to lend me the 600 dollars with the deal that I'd pay him back in a few months. He has money and this wouldn't have been a burden to him. But he decided he wouldn't help unless I sent him nudes, I didn't want to but I did because otherwise I had no way to pay for school. And it's so important to me. So, reluctantly, I did. He was very explicit, and I sent him all the pictures he wanted, even listened to his sick perverted phone calls. But now he won't even return my calls, he won't return any of my texts... And every Facebook message gets read and ignored. Reddit, I have no other way to get into school, and he owes me this money. I trusted him. What should I do to ensure I get it? Please help.

Do I keep trying to confront him?
<bot>: 45year old man offered me help for college. Demanded nudes. Now won't respond to text or facebook.