It's not their fault.

- Their Inbox just not always shows that 'I answered their Previous Message' - so They Don't Know that I did! 😁

( one user I was revently RP'ing with said 'Sorry, I didn't see your Reply' - & explained me this: Your inbox not always informs you that 'you have a message' - there's not always a shining red dot appearing on it - sometimes Someone can message you & the 'you have a new message' red dot doesn't appear...

- & that's what happened here )