Her own parents? They'd just put her in therapy and that was pretty much it. They acted like there was something wrong with her, now.
Tiff's parent really do seem to have dropped the ball, hard, and they've clearly done it over and over again. They didn't notice what Dave was doing to her, they don't seem to have nearly grasped just how traumatic the grooming and abuse was for her, nor how Leslie's suicide was yet another trauma, and they have seriously, seriously fucked up in so many ways in letting Dave's wife visit at all, let alone while Tiffany was here and clearly expected to behave politely to someone that was, at best, a bystander that made no effort to stop the abuse, if not actively condoning it.
It had been five months, almost six since all of that had happened. Dave was in jail, Leslie was alive, although he never contacted her first any more. And he barely spent any time with her unless she went out of her way to visit him. Karen, Mrs.Winters, she practically doted on Tiffany and treated her like she was made out of glass or something.
Her own parents? They'd just put her in therapy and that was pretty much it. They acted like there was something wrong with her, now.
See above about how Tiff's parents should probably have a very detailed and very unpleasant chat with a very angry Bats about how many times and ways they have repeatedly failed their daughter.
Alternatively, Al could do it and make it even less pleasant for them over a much longer period, but he's nowhere near as good at the conversational/social precision best used here as Bats is. Al is, after all, all about massively over the top responses to be 110% certain the threat has been
ended. (See Vampires and how Al dealt with them as a prime example of this.)
"I..." she hiccuped and buried her face into her knees. "I keep messing everything up. And I apologized and it didn't make anything better and-" she swallowed heavily, forcing down a growing lump in her throat, "and now my power is gone and I'm gonna be kicked off the team
ohh, kiddo...
and Dave's wife is hanging around my parents and I don't know how to tell them I don't like it because she knew what he was doing and they won't believe me and I'm, I, I just..."
Again, Tiff's parents have massively failed her repeatedly, and could really do with repeated and ungentle application of the ClueByFour until they eventually get close enough that they can see how badly they fucked up, at least on the horizon.
Actually, there's a thought. Guy's a trained and experienced teen/child counsellor, yes? Have him explain the depths and breadth of their fuckups to her parents. He's a hothead, but he will 100% have Tiffany's well-being at the front of his mind as he does so, and he won't bother being gentle with her parents unless he has to for her sake. And even then, he will be using the very minimum required for her benefit.
He's a hothead, a blowhard and not infrequently a complete jerk, but there's no arguing that he's a hero, and this situation might call for exactly that mix.
She'd already started crying, anyway, and that wasn't going to let up until she'd cried everything out.
Impressive levels of self-awareness there for such a young and traumatised a person. Or maybe it's different for those raised AFAB, I have no clue myself having been firmly AMAB. Certainly for the vast majority of AMAB folks that'd be impressive levels of insight for someone at the other end of puberty.
That said, there really should be long-term consequences for all of these revelations, and they should be wide-spread, because so many have failed so many times, and currently show no hint of actually changing course at all. That's not nearly good enough, and not just on her parent's part.
Regardless of whether Gamer's Mind was worsening things or merely buffering some of Tiff's emotional reactions, her sudden loss of her powers, especially in such a casual way, has added to her trauma and will need to be addressed as well. The poor kid really needs something that can make her feel safe and like she has agency again, stat. Taking those powers away will NOT be at all helpful, but giving her the choice of when and/or how to enable/disable them might be a good choice.
Much like all of the therapy she desperately needs, this needs to be very carefully considered and even more carefully and cautiously actually enacted.
Barry really,
really is Good People. Wally's no slouch himself, and Bart always means well, even if he's almost always deeply handicapped by his upbringing, lifelong strong connection to the Speed Force and the manifold weird parts of all of his personal history/ies. You've got to get the mule's attention first, after all, but when you do, Bart will cross the world and back to help someone with the slightest thing.
Quite literally, of course.