What was James and Thomas relationship like in the reincarnation au?

A pair of clowns bumbling together to figure out how being human works. This AU in particular has no ships, so they're still frienemies friends like in the show. But they do share this weird connection from being the only two ex-engines for the longest time, with only a month's difference between them, a lot of shit they go through for the first time they go through together.

It's also worth noting that Thomas is there with James when they lay eyes on the latter's old engine body for the first time as it's recovered from the ocean and vice-versa with James being there when Thomas finally sees what's left of his old body, with both of them delivering the line: "Whatever happens next, we're all here for you, yeah?" to each other beforehand.