Alice's whole "case" is based around this screenshot T shared ages ago to prove that she knows Bianca. Alice spun the "I'm sorry. I tried" as her being on tattle under Bianca's order to spread hate about Alice, but the thing is T was very tame on tattle and mostly just posted memes (it was twitter where she was wild)
Now of course given that it's just a partial screenshot, and for the love of good I have no idea why she thought it was a good idea to share it, we dont know the context. To me it sounds more like Bianca wanted to help a friend to be allowed somewhere in where they wanted to be in. And tbh I also dont blame Bianca (who was completely new to all the attention) too much for not wanting to deny a friend the chance to defend her: the hate that was spread about Ioan and Bianca back then was enormous and as we know now Alice was blatantly lying at the time (everything T's sister said at the time turned out to be consistent with the evidence Ioan submitted, so the people on the Harrow set have probably seen Ioan in quite a state whenever Alice called him)
In any case Alice puts too much weight into tattle being by default evil. Twitter is no better, arguably worse, and she has even gotten her brother involved there. Regulary orders trolls to fish for information and the like. It's a can of worms that if I was her I wouldnt try to open because it will come back and bite her.