Help me differentiate romantic vs platonic attraction

I need help This is a long post but pls read it. I cannot for the life of me differentiate romantic vs platonic attraction. Let me explain my situation. My best friend ever and me are extremely close. In a very platonic way until last year when I’d look at her sometimes and just think “wow” bc she’s kinda attractive and like I’d find myself not thinking “wow she’s gonna get the boys” but more of “ I find that attractive” I started panicking but until this year I didn’t think too heavily of it bc it wasn’t until this year I really started to realise I definitely am not straight. She’s a very touchy person especially with those she feels incredibly close to (such as her bff lol).I went thru a phase last year of looking at her through rose tinted glasses and never got sick of her company. That ended and I needed more space and she irritated me more for no reason but then I still felt like there was something beneath the surface (on my side ofc) bc I felt attracted in a physical way at times and still somewhere in me romantically or what I think to be romantically. She came to mine for a sleepover last night for the first time ever and it really fuelled me into thinking about this. She’s gone home now so I feel safe to write this. We were snuggling and hugging and holding hands last night and I can’t be totally sure this isn’t psychological but if it wasn’t real I don’t think I could make this up tbh but while we were close I felt completely safe, I could’ve stayed there forever and I constantly crave her touch, it gave me some butterflies and I just wanted to stay in her arms forever. My love language is also touch but I’ve never felt THIS close to someone before. It’s also important to note I do not want to do the dirty with her and I’ve never felt urges to be really sexual but I’m not ready to have sex with anyone so that’s definitely clouding it. As for kissing it could happen but I’m not too sure tbh. I kept thinking last night I would get too passionate and make her uncomfortable so I tried to joke while we snuggled and stuff to keep it lighthearted but really I wanted to get in closer and stuff. I’m not sexually attracted to her but physically yes in a sense. Help??? Thank u for reading this long and if u can help pls comment IMPORTANT: SHE IS ALSO STRAIGHT BTW HER LOVE LANGUAGE IS JUST PHYSICAL TOUCH