Navigating a New Relationship After Trauma

I had a really nice weekend with my boyfriend. I'm just unsure on the physical affection side...parts of me said I wanted no affection and to be left alone...because I was still unsure about cuddling and that. It brought back memories of my ex and how we cuddled. My ex has made me feel so numb and emotionless. So being in a new relationship feels...odd. I don't get any feelings and that's why I keep doubting myself if a relationship is right for me but I don't want to hurt his feelings. I can't feel happiness or anything... I don't know about anything in my life anymore.