It takes time for people to see one another's true colours. A lot of the guys have broken contact with Dan as it's become apparent he only went on the show for clout, any fame he could garner and was desperate to forge a media/presenting career off the back of it (as is common with a fair number of people who go on reality TV). I see he's done a project with the BBC about gay guys on PrEP or something? Even his relationship with Ollie he forced in the end for the purpose of the reunion episode and brand deals on Instagram. Many people can clearly see this about Dan; he doesn't come across as likeable but instead very self-interested. Ollie on the other hand is just a genuine guy, no false air, what you see is what you get, and that's why he received such a positive reception. He's made it clear he doesn't harbour any ill will towards Dan and will always support him. Dan sadly wouldn't do the same for Ollie; and Ollie has said on podcasts that Dan is a little bitter towards him post-split for reasons he doesn't understand.
Ben is in a relationship now and has been for some time if you look at his Instagram. It seems like he's just quietly and happily getting on with his life. He had a genuine friendship with Gareth which started on the show and evidently the two of them have maintained this. He probably doesn't follow Matty anymore as the two of them did try dating for a while in the period after they got eliminated from the show but before it aired, however in the end nothing came of it. If his brief partnership with Matty didn't work out and he's in a relationship with a different guy, there's no reason for him to follow or stay in touch with Matty anymore. I imagine he no longer follows Dan as he can see through him. That and/or they've just drifted apart.
Mikey has become very arrogant (and arguably deluded) after appearing on the show. He refers to himself as an "influencer" and "reality tv star" in his social media bios when he's nothing of the sort. He's done a few podcast interviews, some football refereeing and sports co-hosting/presenting since, so I wonder if he's vying with Dan to get presenting gigs and/or chasing any opportunity he can to get himself on TV again and with that some low-level attention. I've also seen him in a TikTok live saying something along the lines of how he has no interest in Dan and was throwing shade at him, so there may have been more that happened there. From memory, I think there was a bit of Twitter beef where they were indirecting or slagging each other off or things were misconstrued quite a while back? Either way, they're similar in that they're desperate for any fame and followers they can get.
Series 2 is on the way. It was filmed back in September this year, again in Puglia, Italy. No broadcast date has been confirmed by the BBC yet but best guess is that it'll follow the pattern of the first IKAB and IKAG series and hit screens in May time next year, with information about the contestants being released in the weeks prior to it airing. A guy I matched with on Tinder a while back funnily enough now works for Twofour (the production company behind the show based in Devon) and was involved in the production and casting of the new series, shortlisting applicants and conducting Zoom auditions etc. He was posting on Instagram in Italy back in early September. I asked if he could reveal anything but he said that while a lot of information is embargoed and under wraps, with NDAs signed and so on, there are a few bisexual guys in the new series (as there were girls in IKAG), so that'll definitely make things more interesting.