Why did it seem like Sam was the one in control now?

Angel knew she had nothing to fear. 

After all, she was Angel, and how could Sam dare to make any outrageous demands? 

She was open to simple gestures like holding hands or kissing, especially since she had already done so with Sam when time was stopped. 

Truth be told, she didn't dislike Sam; in fact, she found him quite intriguing. Seeing Sam finally show an interested expression was exactly what Angel had anticipated.

Indeed, Sam was just a male student, how could he not be enchanted by her stunning beauty? 

Moreover, the intimacy they shared at her house meant he couldn't possibly be indifferent towards her. He was likely just playing hard to get. 

Well, she thought, let's give him a taste of sweetness. Angel was brimming with confidence.

Sam appeared thoughtful. "Actually, I've been thinking, being helpful is part of the character I want to embody. If you really want my help with your sculpture project, I might consider it."