I don't know if this is the right subreddit to ask this question, but I need to vent.

I feel like there's something wrong with me, or that I'm ignorant; I feel like I'm almost incapable of detecting when there's sexual tension between two characters, whether in homoerotic or heterosexual relationships. When I watch series or movies, I don't notice any sexual connotations unless it's very obvious, like when they blush or touching each other a lot etc. But sometimes I just don't get them, no matter how obvious they are; I don't realize it until someone mentions it and explains why there's a sexual connotation. Am I in denial when that scene is presented? I seriously can't tell. I don't know if I'm just unaware because I've never fallen in love with someone and I'm a young person with little experience, or if it's because I have autism.