I apologizeif I don't get everything right with this one, I haven't seen Dumon's episodes in the anime :( Just going by what I've read.

Dumon:

Hello. I am sending a letter from Barian World to address some concerns.

First of all, I am not a nerd, nor a geek, therefore my nose isn't always in a book.

Second of all, shippings. Why must you pair us with every individual? It seems I don't have many absurd ones, so 'ill comment on them all.

1. Dumon x Marin. Okay, so I gave my life for her. Overall good reasoning…

2. Dumon x Cathy. People say it's because of our hair, but there's not much going for it.

3. Dumon x Yuma. So, I don't like this one.

4. Dumon x Vector. Simply, he killed me.

5. Durbe x Mizael x Vector. Add Mizar to the previous one?

6. Durbe x Ryoga. No comment.

7. Durbe x Mizael. We are Barian Emperors, but we do not love each other.

So this concludes my letter, and I hope it reaches you.