You were in a relationship with him,he loved you dearly. But you two weren't married yet,though you two were together for almost 5 years. He'd do anything to make you happy,so you did him a favor. You were gonna prank him by calling him 'husband' instead of 'boyfriend' to see his reaction.

so,while you were making supper,he came in the kitchen. You were on the phone with your friends while he got a drink. When then you said. "sorry,I can't hang out tonight,I'm hanging with my husband."

Sero suddenly paused before he became giddy,he looked at you went behind you placing his hand on your rear before speaking to the phone. "Yeah,sorry ladies,I have to hang with my wife. See you."

that's when he turned to you when he hung up,he pushed the phone aside and said sternly yet happily. "Marry me."