Honestly, man, reading through your posts over the last year, you're looking at this completely backward.
She didn't 'hide' a relationship like it was a grand conspiracy. She just didn't want to broadcast her personal life to internet strangers, which is completely normal. You may not have seen this since you've claimed to stop watching but over the last year she has said a few time she's in a relationship when parasocial people asked. She used to just ban them instantly since the only people asking are usually the ones who want to date her. But she eventually just started giving a tired, annoyed 'yes' when people asked, hoping they would just leave her alone. That isn't proof of anything nefarious, it’s just a reaction to people constantly pushing personal boundaries.
And this idea that she was somehow running a grift selling the 'single gamer girl fantasy' is complete nonsense. Her channel has always been about gaming, beating games, and grinding achievements. Did she post attractive selfies on Instagram like millions of other people? Sure. Did she occasionally do funny stream challenges or wear cute clothes? Of course. But playing to the meta of being an attractive woman on the internet is a long way from baiting people into thinking they have a shot at dating her. In fact, she hasn't posted selfies on Instagram in well over eight months, and she dialed back anything remotely suggestive ages ago precisely to avoid dealing with this exact kind of obsessive behavior.
She's never been like Amouranth or other 'Just Chatting' girls who sell porn on Onlyfans or do the "speed dating chat" scam. At most all you could buy from her was a wheel spin and maybe watch her doing push-ups or hand-stands, but she stopped doing that years ago. Other girls may be doing the "donate enough money and there's a chance" bullshit, which is pretty fucked up. But Annie has never been that type of person. She doesn't need to. She was friends with a lot of big streamers like Asmon, Forsen and Soda and shares a lot of their community. And she's very connected with the industry and gets a shit ton of sponsors. That's how she makes a living, she isn't "whoring herself out" or "selling her body". Hell, she's even a twitch ambassador now because twitch wanted her to represent what a streamer should be.
Nobody is running a counter-offensive against you trying to cover something up, or hunting through simp forums to keep the simps coming back. Getting this bent out of shape over a streamer's personal life to the point where you're tracking background audio, treating a pregnancy announcement like a forensic victory, and having random strangers DM you updates about someone you claim you haven't watched in months isn't you calling out her "bad behavior". It's just obsessive. You're just trying to cancel her and get others to stop supporting.
To be honest it comes off as a self report where you donated a shit ton of money to her thinking you had a chance and probably got banned for being creepy in her DMs and now you're on a revenge-tour trying to ruin her career.
It's clearly time for you to mute the thread, move on, and put all this hate filled energy into something else.