Playing devil's advocate here (because I also think Niomi is acting like a fool right now) but Joe seems just as calculated as her. If he really moved in with Freddie so he could dump her and have a place to live/roomie already set up, he played her. I'm sorry, but if he was feeling that way (wanting to break up) he should have communicated that to her (or better, if he did at all, because she seemed blindsided by the breakup) and not let her film a bridesmaid video, etc. Sure she's being "disrespectful" now but let's remember she doesn't owe him anything. I agree that she shouldn't be talking bad about him publicly, but he's kind of the one that publicly disrespected her by ending an engagement. The whole (digital) world saw it.
And re: Freddie in the flat, again I would NEVER in a million years post something publicly about that like Niomi did, but shouldn't he be grateful? Lol unless he's paying rent he had a FREE two-bedroom flat in a nice area of London... arguably Joe could have rented that out and used the money to help pay for a place for him and Niomi. I'm not totally sure of their financial situation obviously (like how much he's been given by family or not.. a lot of wealthy families don't actually just give their kids money for a house or something because they want them to earn it themselves). Again Niomi had no right to post anything about that publicly, but Freddie had to expect that if his brother (who OWNS the place) and his fiance moved in she might want to put up their own stuff too? I think she could have handled it more delicately, and I'm all about helping family out, but there's a difference. When Joe asked Niomi to marry him he was putting her on the level of family, and she shouldn't have been second priority to Freddie. Just my opinion