Crush on my girl friend? Maybe? Help

I think I like one of my friends. She’s openly bi. I’m still figuring things out. We have really been connecting lately spending a lot more time together and I feel like our lives are aligning for once ( as in we’re both single at the moment) I don’t wanna say anything to her cause we have been friends for like 10 years and I really don’t wanna scare her away. Especially if I’m just figuring things out when she wants to look for an actual girlfriend. Any actual relatable advice? This is definitely not just take a chance moment. Also don’t wanna sit down to talk if it’s not gonna “work out”. I don’t want it be a big deal. Should I just ignore it?