「やん、宇奈月ちゃんったら。彼氏くんの方が攻め攻めかと思ってたら、しっかり包容力見せてるじゃん」
「なんだかんだで、年下の男の子に好きにさせてあげてるって感じだったよね」
Context: A girl was talking to her boyfriend and these two girls were listening in on their conversation. After she came back inside they started talking to her.
In the above I'm a bit lost as to what 包容力見せてる means and who is the one doing it. Is it referring to her boyfriend or her?