Older woman used me for sex?

My neighbor is a 35 year old real estate agent and makes great money. I’m 23 And she flirted with me last Monday and from that Monday to Thursday we talked nonstop, super flirty and sexual, then this past Friday we end up having sex and she said it was the best she’s ever had. Saturday and Sunday she doesn’t hit me up at all and Monday we awkwardly exchanged words outside like she was so nervous for some reason so later that night I sent her a text asking if everything  is okay and if anything’s wrong she can talk to me. She didn’t reply to me Since. Seems like she ghosted next 

All my friends said she just wanted a one time thing and that’s that. Any input?