He texted but didn’t state his name , why?

So this guy I dated shortly, after discovering he had multiple girlfriends awhile ago I stop talking to him and was upset, I decided to message him my number on my closed Facebook account then closed my account back up after leaving my name and number. Few hours later he texted Just the word Hello I knew it was him but why he didn’t say his name it’s been very long time I don’t have his number saved now it’s been like two days after I replied hi who is this he has not replied? Any advice

He texted but didn’t state his name , why?
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