Isn't love pathetic? {A Tsukkiyama fic}

"Pathetic."
Yamaguchi startled awoke with a start, the blaring ringing of his alarm clock hurting his ears. He waved his arm blindly, swatting at air before finally hitting the 'stop' on the alarm clock. Rubbing his eyes, Yamaguchi let a loud yawn escape his lips. "Tadashi! There's a visitor for you, his name is Tsukkishima Kei!" His mother called from the kitchen. Groaning, Yamaguchi pulled himself out of the bed and got dressed.
Walking down the stairs, he heard two voices conversing together, one belonging to his mother, another to a stranger. Entering the living room, he saw a tall man wearing a suit talking to his mother, who was now grinning from ear to ear. After conversing for a few more minutes (while Yamaguchi stood there awkwardly,) she finally noticed him and beckoned him closer. "Dear, I want you to meet this simply wonderful person! His name is Tsukkishima Kei and he's going to be your husband!"

"Oh oka- wait what?!"

{ Rich!Tsukkishima x Yamaguchi AU}