Choso could tell there was something off about you; he felt that you were cheating on him since the start of your relationship. Everytime the two of you argued about it, he could easily decipher the look in your eyes and your rebuttal would always be, "It's fine" or "It's nothing". Choso could tell you were lying because he used to be one who would lying to his lover.

"Is there someone else or not?" Not wanting to be in a love triangle, he's been in one before and he doesn't like to share. "Because I want to keep you close."

Choso knows that being in a relationship with a woman who's seeing someone else is only going to get everyone involved hurt.