How to have a romantic relationship if you can't flirt/ read between the lines??

I am a very recently diagnosed 22 year old woman and I really want to be in a romantic relationship (I know that sounds very sad and desperate!!). I have had a boyfriend in my teens but we were more like friends. I feel like I can never truly be happy until I am in a relationship/ have a family, which is a very negative way to think, I know, but many of my NT friends have boyfriends/ girlfriends and I feel unaccomplished compared to them.

But I'm afraid that I can never initiate a romantic relationship because I have no idea what flirting is and what the difference is between flirting and making friends. I also know that reading between the lines is important when you're trying to form a romantic relationship... how do people on the spectrum navigate that? 

I would be extremely grateful if any of you could please provide any tips on dating/ forming deep, romantic connections with people!! Many thanks :)