Got your notification today July 9th, I'm replying here.
Your reply to my comment is in your profile, but doesn't link up to my comment there. Sometimes comments don't stick on a creation if it's already up to about ~500 comments. One of the mysteries of Imgflip.
I've seen that happen a few times before. Maybe it's a bug with an easy fix, I should ask about it.
Anyways, hope you had fun on the 4th and are enjoying the summer :)