“You’re an honorary trans woman,” Candis Cayne tells Disick in the clip.
“I’ve been here 10 minutes!” he replies with a laugh.
“I’ve been through a lot, he’s been through a lot … it’s how you come out the other side,” Caitlyn, 66, explains.
RELATED VIDEO: Top 3 I Am Cait Moments You May Have Missed!
And while Disick, 32, seems to get along great with Jenner’s friends, do things get tense with the former Olympian herself?
“I’m here for you, not just your people,” Disick tells Jenner at one point. “I’ve spent more time with them than you.”
Shortly afterwards, Jenner’s friends ask her why she’s “ignoring” Disick during a group meal, and eventually he storms out.
“I think he’s upset,” says one of Jenner’s pals.
“I would much rather deal with something like that than have to deal with him being hammered,” Jenner replies, seemingly referencing Disick’s past struggles with substance abuse.
Most recently, Disick completed rehab treatment in the fall of last year and has since maintained he is “just trying to be responsible.”
“I’m not out here trying to get wasted, but you know what, I will have a beer on the beach. I’m not doing drugs, I’m not doing anything insane, so I think people just need to relax I just want to try to live my life,” the father of three told PEOPLE during a club appearance in Las Vegas earlier this month.
“In the end, I’m trying to live my life. I’m trying to live it healthy. I’m trying to be there for the people I love, which is Kourtney and the kids, but you know what, we’re not together,” he added. “I drink responsibly. I have a couple drinks with my friends when I’m out just like anyone else. … At the end of the day I just want to fit in, and I just want to be treated like anybody else and I don’t want to be beat up every day.”
I Am Cait airs Sundays (9 p.m. ET) on E!