What's a good comeback for "you're a bad texter? "?

Anonymous
He's my friends with benefits and I do admit I respond late all the time lol but is not my fault. He told me I'm a bad texter. How does "but in not bad not in giving bj" sounds like? What other comebacks l I'll? It doesn't have to be sex related?
Updates
+1 y
He means I take long to reply though, not on spelling or grammar. Although mines are bad here.
What's a good comeback for "you're a bad texter? "?
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