mad nut
when two people are so crazy about each other they act like they’re the only ones in the world; then they meet someone who’s even crazier and everything goes to hell
I loved my girlfriend until I met her best friend. Now I’m mad nut and she’s a mess.
My crush was my best friend. Then his crush came in and now I’m mad nut.
They were mad nuts. Then they met my mom. Now they’re both mad nuts.