Being a bad texter is very common. Don't equate that with being a bad or disinterested person. But I think it could be acceptable to dump someone because they have an incompatible communication style.

Text him back and say "bye." Show him how it feels.

Be glad he didn't say "k"

Sorry to here that OP, you deserve way better than him

This sounds like just what happened to me today...

Well, at least he didn't ignore you or respond in a monosyllable.

Maybe that simple answer is also an answer to your relationship. I think you should talk face to face. It's so easy to misunderstand each other on text

I don't know about you, but when I talk to a girl I like it's better in person. I don't like reading something on a phone screen, you should just call him

My wife and I had that issue. I am a monosyllabic replier. After some counseling she learned that that's just how my brain works. I have no adequate response to your emotional state and therefore just say ok while I think about it since not replying is worse in moment than saying ok. Don't take it as an insult just realize he may be different than you and if you can't work that out then it's time to move on.

I was in the same position. It's awful I know. But usually it means they just don't want to talk about it right now. It's hard I know. But give him a day or so. Stay optimistic. I'm rooting for you.