Funniest thing happening today

In facebook I have a request from a person (male) wanting to become friends, which means to actually be able to see my full profile on facebook and generally be able to exchange messages.
Normally I get quite a few requests from random people I don’t know or from people who know some of my friends but I don’t know the person.
This one is different, because the guy has no photo in his profile and no friends so far, which is a little bit weird. First I thought, ah, I would know a guy with that first name, but the surname didn’t fit.
Well, I think it is weird that I am the only person in his friend’s list then and why hasn’t he got at least a photo? Suscpicious….just spam?
I was too curious and wrote that person a message:

“hey, you added me as friend. who are you? do i know you?”

Today came the answer:

“Hello my dear Anja,
I´m a little bit insulted. I used to be your boyfriend. How are you doing?”