Imo all her posts have a reason. I too thought am I reading too much into this but nah this is Alice there is more to it than a simple post.I'm not sure anymore if she would want them to be back together, she has built a "fan" base based on the idea of hating cheaters (hence why her last post didnt go too well), she would lose all her support over it and it would be a tad embarrassing. However, I thought this already last summer and then it turned out that she was thinking of them as a couple that hit just a tough patch and would reunited on a romantic family trip to France, so who knows.
In any case she wants to break them up, she has admitted this on several occasions. Either because of the above or because she thinks Bianca is mindcontrolling him (as in the above) and that's why he isnt giving her everything, and thus she would continue to be able to live off him even if they arent together. Or she simply wants them to break up out of spite ("If I cant have him, no one can").
Realistically there are three ways to seperate them depending on how committed Bianca is to him. Trying to break them up over bullying/attacking her health hasnt worked. She might work now on on the assumption that she is with Ioan for the fame (again, not unrealistic, and certainly what she thinks), so she may well signalling Bianca that letting the man go back to his family (whether full or not, I outlined both scenarios) can be a good thing for her career (or at least that it's not too late to do the "right" thing). I guess she will know the answer if their movie isnt getting made or a flop, if Bianca is still with Ioan after that, then that theory is smashed to pieces too. And her last option is to attack genuine love with terrible stories about him ("videos of your boyfriend" as she alluded to the other day)
Disclaimer: Not saying that her post is actually that deep about them (lol), but that's usually the case with her. When she posted about Helen dying on IG last year I was also thinking that this is her posting it to signal something to Ioan, and then thought maybe I'm giving her too little credit, but then the court documents revealed that I had the right thought.
I can see Alice moving pieces on her chess board