Following the writing, I don't think Angelica is any where near the bad girl she seems. It's all her come on to try and be relevant, to her mom, to herself and now to the MC. She, in spite of all her beauty and brains, is extremely self conscious and insecure (I don't have what it takes to be successful like my mom), and she's getting caring and validation from the MC. Her inner dialogue says it, her longing looks say it, she's in love with the MC. I don't know, of course, if I'm reading that right, but it seems to me the dev is clearly steering the dialogue that way. Frankly I really like it, and hope I'm right. Picturing an emotional scene that builds to a tearful confession of love followed by a passionate smoking hot love making session with Angelica. That would be volcanic.