Hocd obsessive thoughts toward one person

Hello,I'm trying not to freak out too much about this.Now let me get straight to the point,There is a girl youtuber I always admired,I always thought she was really beautiful.I even used to do my makeup like her.So I was watching her video,and it felt very different,like I feel like I have a crush on her like I have crush on guys.I now find her attractive like like I find men attractive,It's very weird and confusing cause i did never felt like it before.I like now find it ten time more attractive.I think i even like this feeling.but when I actually imagine being with her,I do not like it and find it displeasing.So is this what they call backdoor spikes?

Update:I'm feeling much better today.Thanks to everyone who helped me.And special thanks to Snaga