The Ex based THE MOST hated character in the game off of her ex the dude is SO universally hated that even Mc himself doesn’t even see him as human, then the Ex says she kills the character as soon as possible….how can this be seen as anything but spiteful?
In Doom 2 the severed head of John Romero (One of the game company's leaders) is the actual big bad, and the weakpoint of the boss... should John Romero have felt he had been spited, because yes that was added in without him knowing (initially).
I think this is just a difference in interactions with friends, because I would absolutely add my friend into a game and make him the biggest loser out there for a laugh, and I don't see how the scenario here is any different.
Yes they're exes, but how long has the character design been like that? How is their current relationship, are they still friendly? Was SHE the one who made the boss look so much like him, because it seems like it was an office prank, and not a 'her' prank.
So as it stands, I just don't see this as her being malicious, but that's just me going off my experiences, so whatever.