Should I still gift it?

I like a person, we dated for a month and I developed a lot of feelings towards them. But we had to end it coz they didn't develop any feelings and in order not to end in a bad terms we ended things. I need all those feelings deep down now.

Their birthday is nearing and I wanted to gift something. Should I go ahead with that or refrain from it.

P.S I still like them a lot.