Silly

Silly is the best and ONLY word to ever exist in the entirety of ever..it is very versatile and can be used in anyway as long as u specify how its being used. Sillier doesn't apply here, use silly-er instead

"I love you silly (lying)"
"You're silly (derogatory)"
"I'd never cheat on you silly (has slept with 20 different men)"
"You're my silly bestie (platonic soulmates)"