DD is 4 and undergoing assessment for autism. She has a multitude of sensory processing issues and hates physical contact of any sort, particularly affection. She will actually scream and cry if she thinks anyone (I.e. approaching grandparents) may try and hug her. Despite this, DP insists on trying to kiss and hug her. This morning she was playing and he said goodbye to her as he was going out. She blanked him, as is usual. He said can I have a kiss, she flinched and shook her hear violently, turned away from him and continued playing. He leaned round with his lips puckered inches from her face and she slapped him in it. He was angry and stomped off mumbling 'love you too' and later said I should've stepped in and punished DD for her aggression. I said I think he should respect her wishes not to be hounded for affection and that he deserved it, really. Aibu?