I did nothing wrong...and I’ll never do it again

I'm not sure how to handle texts from Kopeck that go:

I'm thinking about how much I miss the way we were 6 months ago.

to

So why were you wasting your time. I wanted to date you and you couldn't. you were wasting your time.

and end with

That I got scared bc I was in love with you and you have been the only one I felt so strongly for.

And then the next day result in a very very cold phone conversation towards me for absolutely no reason.