1) Trisha has made it very obvious that she has abandonment issues, and I think because of this, as long as Moses stays with her, she feels okay, no matter how horrible of a person he is. She very desperately wants to be loved and desired. Moses must have been very convincing when he defended himself to her, but I can't imagine it being any deeper than "I was lying because I was mad, you're so beautiful, I don't want anyone else but you, I promise."

2) Sean I can't speak much for because they really seemed to get along, but I think that was only because Trisha was copying his positivity and energy. It clearly started wearing him down once she started to feel like she was losing her grip on him (abandonment issues) so she'd do crazy stuff to get his attention. Jason clearly only gave her a shot at the beginning for the Vlog Squad content and must've grown to like her-- I don't think he was ever that serious about her, to be honest, but I think he definitely cared about her well being when she started being codependent.

3) Family is complicated, and family protects family. It's not too far off from why Hila doesn't want to talk about Trisha anymore. If they talk about Trisha, then they have to talk about Moses, and inevitably his rape allegations. I don't think Hila is necessarily trying to protect her brother (I think it's mostly for her mom's sake) but she's doing so by not being willing to discuss it. I think the same thing is going on in Trisha's family. They know she lies for attention and that most of what she says sort of gets brushed under the rug, and I don't think her fans have enough empathy to actually think of Trisha's trauma as legitimate unless they use it to defend her shitty actions, so they let her do what makes her money and stay quiet.