Serinasan's Manga

I've read the novel for this and Raniero, the ML, is literally psycho. Also the novel ending is kinda fucked so I'm wondering if this will end the same way. A similar manhwa would probably be 'Kneel Before Me" in terms of ML craziness.

Wow this is getting an adaptation?! This is very melodramatic (think, Red Rose Devoted to You) but I like cliches like that so hahaha

Synopsis:
I actually knew the truth.
«I didn’t marry my wife because I loved her.»

So it’s not his fault.
It was all my fault to have false expectations.

«I just signed a contract with her based on needs.»

Three years as his wife.
I tried hard to be the right woman for him, but I couldn’t get a piece of his heart.

«I didn’t know it would last this long. It’s annoying.»

I was nothing to him to the extent that I was thrown away as soon as the heroine appeared.

In the end, the main character was the main character and the extra was the extra. No matter how hard I try, I’m just an annoying extra.
The role hasn’t changed.

So it’s right for me to leave.
«I’m sorry I’ve been bothering you all this time. Please be happy with her.»