I will try to keep this as brief as possible 
I am 28. When I was maybe 16-17 I had a boyfriend, we'll call him J who was a little older than me who turned out to be a bit of a shit (drinking, gambling, drugs, disfunctional family, etc). Basically I dumped him.
He rang my mum up and told her he had syphalis (I know that's spelt wrong) out of spite
I got a full check up, nothing. Would get the odd weirdy withheld silent call but these tailed off.
In 2004had DS with new partner (now also an ex), J started ringing me up at daft times, say 1 am, then 2am, then 3am etc. Current partner at the time end up having stern words with him and this stopped.
May last year I had a silent phone call on new number, thought nothing of it.
Then had a message from a woman with J's surname - he was messaging me through his new wife's facebook page
lots of messages in early hours of morning rambling about things I had posted (I wasn't aware my profile was animmediately set it to super private). I ignored.
Last night I had a friend request from the wife's FB account, and a message:
Why do you ignore me? It took me a long time to get over you but I am over you now and all I want is me and you to be friends!!
I know that I was a shit but there is no need to be like you are been at the moment, I will see you again 1 day and you will see that I have changed a lot (I am a big guy now cause I work out 3 times a week :-) ). Accept my friend request and talk to me some time :-) hope to speak to you soon x x x
He was weird and paranoid and weird when I went out with him - would you be bemused or sightly alarmed at this message??
DS's dad turned out to be an abusive cock too and I'm on a man ban
- I'm well aware my radar for what would worry most people passes me by so I want opinions on what if anything I should do about this guy??? 