Can't really give you the best advice but I can tell you a little bit of how things played out in my situation.

I met a girl, who wasn't looking for a relationship she made that quite clear despite having so many things in common, she just did not have the time for a relationship, college and other things in her life pretty much consumed all of her free time to the point she couldn't really hangout that much with any of her close friends let alone even consider having a relationship with anyone. I won't lie, I wasn't exactly full of free time either I work 50-70 hours a week so the thought of having a relationship right now wasn't a priority of mine. But anyways we hung out occasionally as friends and over time I started to catch feelings, she still only thought of me as a friend at that point. I respected how she felt and agreed to not let anything change our friendship. Even though I never stopped flirting with her LMAO

Well fast forward a few months, several days of good morning text between the two of us, small talk off and on through out our busy day, occasional phone calls at night before bed, hanging out for a few hours once every two weeks or so, just us being us, well things changed she started liking me and appreciated how patient I was and that I haven't tried to complicate her life and she agreed to date and get to know one another more, Will things work out between us? The fuck if I know I can't predict the future lol I didn't want a platonic relationship either but I felt like this girl was one of kind so chances it and I was willing to see how things go between us.

we're still both really busy she more than I and we don't get much time together but the moments we do get are so much more meaningful I value them much more then I have with any other relationship I have had in the past. Sometimes people are actually busy they aren't just leading you on or trying to be nice and politely let you down because they aren't interested. Everyone's life is different, and if you really care about one another things will work out you just have to decide if she's worth it or not. Relationship require work, patient, and understanding among other things Idk about you but I wouldn't trade what I have with the woman I'm currently seeing for anything else in the world right now. I agree sometimes it's a little scary not knowing if things will work out between us because of how chaotic our busy schedules are but the possibilities of holding on long enough to one day get to a point where we both can slow down some and enjoy each other's company a little more is what drives me to keep going, if she makes you happy stop stressing over it and just appreciate the moments you do have with her that was my motto and so far it's working out pretty well for me. Anyways good luck and I wish you the best.