Hey there! I would recommend you to the remove the 's' from "behaviours", otherwise your paragraph is correct! Hope this helps!

Hello Bitaho. You asked: " It's too late to say anything. I was really put off by your behaviours and remarks. I should have walked away from you earlier. Thanks in advance" 🙏 I would say as a native English speaker: " It's too late to say anything! I was really put off by your behaviouR (singular) and remarkS (yes, plural form is correct) . I should have walked away from you earlier. I hope that this helps you 😀

I agree with Dimpho. Remove the 's' from behaviors and it will be perfect.

If you were writing in a novel than I would tell you it could be improved to be more eloquent. But for conversational writing and speaking, there’s nothing wrong with it. Just depends on the context. Sounds like a TV drama script.

haha, you nailed it. Simply strike of the s from behaviours