Byakuya had no idea how to be an actual good boyfriend

It really was a mixer of his lack of empathy, his ego, his self-centredness and never having a significant other before you, since you were the only person who could actually deal with him and his "I'm better than anyone because I'm rich and the ultimate Affluent Progeny" mentality

He knew he was a horrible person, hey he wasn't going to lie to himself because he knew he wasn't a good boyfriend as because of him running the Togami corporation

You had been running your own business since you were 16 and byakuya couldn’t even give two shits about it? When you started making almost as much money as he did, of course he wanted to make a profit out of this and he thought you’d be happy as a stay at home girlfriend

So one day, he sat you down and started speaking with a deadly serious and authoritative tone, crossing his arms over his chest and glaring daggers at you

“I want your company, a woman like you shouldn’t be worrying about a company that this and you should be spending your time with the Togami mannor”