I went to the local pizza place for lunch yesterday. Just to get a take away salad.

As i got there it was closed. So i was turned away and was walking back, and get my lunch elsewhere when there was a knock on the window. I turned and it was a male acquaintance of mine.

He invited me in the rest of the staff were in there (they couldn't open for safety reasons) but he allowed me to get myself a salad, taking no money from me.

Later going home that night he was catching the same train he told me that i was the only one he let in that day. I just felt myself blushing, of course i thanked him for the free lunch and he said that was alright. He also asked whether the waitress took any money from me. I said she didn't.

That was alright then he said

Now what do you make of this. A friendly gesture.

Sounds like he was trying to demonstrate that you were something special. Most likely because he fancies you. Need I say anything more than that.