Guy asked me to pay him back 3 months later?

I borrowed $40 bucks from a dude that liked me about 3 months ago and I paid him back 3 months ago. He recently messaged me and asked me when I was having my baby so we can “hang out.” I told him I’m not interested in dating or having sex in the future. He then begin to tell me I owe him money from 3 months ago. I was taken back and sent his a receipt of my paying him back. He then proceeded to tell me I owe him $24 more dollars and if I don’t pay him now he will show up to my house and cause a problem. I informed him that the police will be notified and if he showed up to my house unannounced causing drama. I double checked my cash app and only borrowed $40 which I paid to him. Why would he bring this up 3 months later? Is it because I rejected him?

Guy asked me to pay him back 3 months later?
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