Kaito
Trust - 9. Down a point because Issei doesn't trust him not to prank him, but otherwise, without question.
Respect - 8. So immature.
Interest - 10. He always wants to know what you're doing!
Attraction - 3. The answer is no.
Fondness - 10. Ilu, Kaito.
Camaraderie - 9. They have their spats and their teasing, but...

Kid
Trust - 10. Kid is one of the few people where Issei would consider walking off a cliff if they asked him to. Okay, hang glider helps that, but.
Respect - 10. Issei admires Kid a great deal.
Interest - 10. Why else would he keep showing up at heists?
Attraction - 10. Iyaaan, so hot~
Fondness - 10. Love love love love.
Camaraderie - 10. They get along extremely well, apart from the awkwardness.

Keiichi - you have a lot of K names, don't you?
Trust - 4. You have gone ax crazy, idk.
Respect - 7. Apart from that, you seem like a decent person.
Interest - 8. He does want to get to know you better.
Attraction - 2. Not his type.
Fondness - 7. Ax crazy does bring it down.
Camaraderie - 8. Would be 9, like Kaito, but ax crazy.