I have nothing against Angelo because I obviously don't know him personally, but I don't think he's a positive overall influence on Holly.
He's clearly big into fitness and running, specifically. That's all well and good, but Holly doesn't want to be left behind and because of her competitive mindset, if he goes for a run, she has to as well. Yesterday, when her body was clearly screaming at her to rest, she decides to join him on a cycle ride while he goes for a run. She said he "looked after her"; if he was truly looking after her, he would have told her to stay at home and actually recover.
Going for an 8km cycle the day you're sick and then a 24km run the following day? How can he and Holly's family not look at that and become incredibly concerned. Her compulsion to exercise is an evident sickness and Angelo enables it. He either has a similar problem, is infatuated with her to the extent he can't say anything, or is whipped in the sense that he doesn't way to take any potential steps that could put the relationship at risk.
Again, it's only through a camera so I'm not going to act like an expert, but I much preferred her with Charlie. She seemed far more "free" there and would go out of her comfort zone. Even if unintentionally, Angelo supports her unhealthy lifestyle, as does the rest of her family.