I think I’m turning bisexual

I’m following this girl on TT for a while now, and she’s a real cutie, great sense of humor, smart, and pretty to boot! We’re not interacting that much, but when I comment on her videos she always seem to take extra effort in replying back, and it always feels personal, not just some generic reply.

I have no idea if she’s actually into me, but it sure feels like there’s something more there, and I find myself incredibly intrigued and … attracted? Is this how it starts? Or am I just having an overactive imagination?