What’s wrong with me?

Hi I’m a 23 year old (cishet ?)F , I’ve been in several relationships both committed and casual since i was 19. Out of all these encounters I’ve never been in love or REAAAALY liked my partner to the point where i was scared of losing them. For the past 8 months I’ve been going out with a guy, i was looking for a relationship when i met him we went on dates for 4 months and then got into physical stuff. I thought by now id feel more than just “i like him” , that there would be something deeper, i like sex but i don’t like or the other things , PDA , kissing, holding hands in public etc i just don’t think about them nor feel that I’m missing out on anything. I can see that my lack of showing him affection is affecting him . I have no desire to be a mother or a wife , never had this desire ever. What’s wrong with me?