– Details leak from Wicked set: Ariana Grande's alleged affair with co-star Ethan Slater.
– Slater's estranged wife, Lilly Jay, reportedly befriended Grande before cheating scandal.
– TMZ sources say Grande often hung out with the couple on set in London.
– Jay liked Slater's posts before his Instagram went private.
– Insiders insist the relationship began after Grande and Slater's respective splits.
– Emotions are high; friends try to protect Jay.
– Ari and Ethan aim to be respectful of their exes while pursuing new relationship.
– Trying to keep a low profile amid the public scrutiny.