Kaley Cuoco celebrates a relationship milestone, but not without a few laughs.

The flight attendant star visited her Instagram to celebrate her fifth anniversary with her husband Karl Cook.

“Happy 5 years to the strangest person I know!” She wrote next to a black and white photo of herself and Karl sharing a PDA with face covers. “I don’t remember a moment before you stepped into my life … what a boring life it must have been! I love you @mrtankcook!”

Karl returned the feelings in the comments and wrote, “This is the only way I want to kiss from now on !!! I love you so much, honey!”

And while the news was super sweet, Kaley’s ex-boyfriend and The Big Bang Theory star Johnny Galecki seemed to have problems with the lettering given the time they spent together and commented, “Um.”

As many fans may remember, while Johnny and Kaley were a couple on TV, they were also in real life for two years, which was roughly the first through third seasons of the popular show.