i feel attracted to people (also sexually) but don't develop romantic feelings

First of all, sorry for my english, it's not my first language. I'm a girl and right now I am in queerplatonic relationship with a girl, and she is aromantic, never understood the concept of romantic feelings. I, on the other hand, know I had been in love with people, so I experienced romantic attraction (overall, I've been obsessed with concept of romance for a long time). But the only time I felt romantic feelings in my life was in my first relationships with a girl, years ago, in next I struggled to understand my feelings (she was the one who confessed, I just agreed because I really loved her platonically and she was important for me, I cherished those relationships and still do, but after relationships ended I moved on very fast) and right now I do not feel romantic feelings at all, even though I think I can??? Maybe I need more time??? Is there something wrong with me if I want to experience romantic feelings again and just wait maybe they start to develop somehow?? These relationships I'm in right now escalated really fast (we kissed in first two weeks talking stage maybe, had our first sexual intercourse like in first 3 months, and we are okay with that pace) also I do feel attracted to her, sexually, and like to her as a person???? we both are probably demisexual and became important for eachother really quick I just want to understand why I started to struggle with developing romantic feelings but no sexual attraction?? And can I still fall in love if I thought about it so much (wait for a miracle to happen, yeah)
Sorry for a long yap, I really am confused with myself and don't understand why I stopped feeling romantic attraction I still want to do romantic things and dream about them