I wasn't off. I don't know what your expecting here but there are only so many routes it could take. In order for her to continue engaging in cheating she has to at least somewhat enjoy what she is doing. If you have a problem with the NTR then you must want to see vanilla instead. I'd say that's a pretty fair assessment.
In my opinion, Elaine has several paths to corruption:
1. A wealthy sponsor (e.g., Alvar's uncle) offers Elaine to promote her channel and help Alvar with money and various connections in exchange for ‘special’ favours from Elaine. Possible outcomes: 1) Elaine becomes the sponsor's mistress (bitch) and at the end of the story leaves Alvar's agency and ends her relationship with him. 2) Elaine remains loyal to Alvar despite what has happened and even helps him gain connections and money by making the sponsor her personal cash cow/bitch.
2. Elaine tries to make Alvar jealous by starting to date others. The best person for this role, I think, is Thomas. Firstly, it will cause more of a jealousy effect on Alvar/players, perhaps he will finally decide to remember that he has balls and that no man dares touch his women. Secondly, it's an opportunity to piss off Morgana and let her know how the other person feels when a guy/girlfriend is taken away. Outcomes: 1) Elaine becomes Thomas' next sex girlfriend. 2) Elaine falls in love with Thomas, forcing him to dump Morgana. After which she herself roughly breaks up with him.
3. Elaine convinces Morgana to pay more attention to others, thus making her look like a whore in Alvar's eyes and thus ending their relationship. After the breakup, Elaine is supportive of Alvar in every way possible and eventually starts dating him. (Here, Elaine acts as the villain who wants to destroy the characters' relationship.)
4. A perverted fan who tricks Elaine into a relationship. For example, during one of the fan/subscriber meetings, one of them gets Elaine drunk and rapes her, then blackmails her. Outcomes: 1) Elaine becomes a slut and starts a channel where she broadcasts how she fucks other men/women. 2) Elaine ends up getting revenge on the jerk by recording him stoned fucking a fat pig (Guy Ritchie film reference).
"Sorry for the Google translation."