I feel like Michi is the only one who is in love in this relationship, she is head over heels for Youchi while Youchi is just going with the flow. That's why it's always Michi who is giving her all in this relationship. Youchi didn't fall out of love, he didn't love her at all from the start. He just felt comfortable around her.
Lize, you already have Cliff.
Just give Killian to Edith.
You can't have 2 in 1 ya know.