Why did the love letter blush on Valentine's Day?

Because it was sealed with a kiss!

I'm not single on Valentine's Day, I'm just

in a long-distance relationship with my couch and Netflix.

Why did the couple's love letter go to therapy on Valentine's Day?

Because it had a lot of 'expressed' emotions to work through.

Are you a Valentine's Day cookie? Because you're the crumb to my heart and I dough-n't want to be without you.