My father’s new girlfriend is my age (20) and looks like me. How do I tell him it’s creepy?

My father lost his wife not even a year ago. He was married to her for almost 30 years and they had me and my brother together. It’s only been a few months and he’s already seeing someone. I’m not necessarily opposed to this, but the thing that really creeps me out is that she’s my age (20) and she looks like me.<br><br>I should make it clear that my mother passed away of a terrible disease that distorted her face. She was in terrible pain and we all knew it was coming, but still it was an upsetting time. My father loved my mother with all his heart and I’m sure he still does. That’s why it’s very strange that he’s started seeing this woman who is young enough to be his daughter and who also looks like his daughter.<br><br>I should make it clear I’m not upset that he’s seeing someone. What I’m upset about is WHO he is seeing. If he had gone after a more mature woman who didn’t look anything like me, I’d be fine with it. But this just seems like he’s trying to replace my mother with a younger model, and it’s creepy as all hell. Remember how I mentioned this woman looks like me? Well it’s not just a passing resemblance, it’s downright strange and I can’t tell them apart when they wear their hair in the same style. So it looks like my father is both dating a woman who looks like his late wife AND his daughter.<br><br>Obviously I need to tell him how I feel but I don’t want to just come right out and say something offensive. I feel like I need to have this conversation with him because he needs to understand that what he’s doing is wrong and creepy. But I don’t know what to say without mentioning his girlfriend’s resemblance to me.