Yes. I did give you my phone number last May. You asked for directions to Clark street (what don't you understand about a grid system?) and I gave them. We were both walking to Clark and you started talking to me. You were pleasant enough for a stranger. Fine. Then you suggested that we might hang out sometime. That surprised me and I probably responded something like "uh. maybe. sure." Then you asked for my phone number. I gave it.
You texted that evening or an evening or two later. I don't really remember. I apologized for having given you my phone number. Said I didn't have time for new friends--hardly had time for the friends I already had--and I was seeing someone and I wasn't available to hang out. I think you asked if it was okay if you hung onto my number in case I had time at some later date. I'm pretty sure I said I would not have time at some later date.
I don't remember if you actually texted at some point a few months later at which time I would have responded that I still did not have time. Then you said ok, you'd delete my phone number. At some point you did say you would just delete my phone number.
(keep in mind that we met once, briefly, on the street, strangers)
So why did you text me Sunday evening, after a year and a half, to ask if I remember having met you? "Hey. This is ------. We met a while back. Do you remember?" I believe that the event I remember is the last time I gave out my phone number to a boy. So I believe I am correct in thinking the text message I received Sunday is from that boy I met a year and a half ago. What don't you understand? I am not available. I will never be available.
I didn't respond. If you text again, ------, I will say "No. You must have the wrong number."