"Why not? There's gotta be weirder things people get help for." Does Tidus know what? No. Buut- "You're not super close, so it's not going to be weird, and Inigo won't tell anyone what you talk about. Also, you're both on different teams, so no awkward mission moments."

He leans back, shrugging with a smile. "What you got to lose? He can be your...affection therapist!"

It may have been a joke, but if encouraging the idea actually means something good for Kaiba...! (or even them both?)