Well, since u are not answering her regularly, I would say u are not really interested in her. If u were, u would make time for her and answer her promptly. At least show u are putting in an effort.
I know u may be busy, but just a short simple text doesn't take long. It doesn't seem ur heart is in it. Tell her, don't lead her on thinking it's more than what it is.

Desperate af. I thought it was a horny guy at first, that's how desperate it sounds.

It depends on how you feel about that person..

block

Sounds like a psycho.