He gave her knee an affectionate pat/He gave her an affectionate pat on the knee.
She gave her mother an affectionate hug.
He enfolded the child in an affectionate embrace.
She tried to be an affectionate wife.
1. 充满深情的, 温柔亲切的[(+to/towards/with)]
She was very affectionate with children.
2. 【废】强烈倾向的; 任性的[(+to)]