Awww... first time in a long while reading a Yaoi ship in Isekai & the guy's not given any more chance because he's a liability to the team
As a Fujoshi, I admit it's rare to get more Yaoi/Shonen Ai Isekai works out there. Hope in the future there'll be some more.
That said, our MC is being a really good father figure to the kids, being an instant hero whenever it's crucial & got the captain's attention; that's why the man's so jealous lol. If we flip it into a hetero love triangle is just one of those cliche jealousy tropes. It's stupidly dangerous though.