Is it normal to mess around with your best friend?

So me and my best friend have been friends for almost about 5 years, and we are both 20 years old. I couldn't find much online so I decided to come in here and ask. But I think my best friend is in love with me?? Hold on, this is a long story.

First off, she's bisexual, I'm straight (if not straight, bisexual if anything because I'm definitely attracted to men.) I'm a virgin and she is not.

So there have been a couple of times where we messed around. One night I was sleeping over at her house like always and we were in bed talking, when all of the sudden she grabs my hand and places it above her pussy and moved my hand in circles. I took control and started to play with her through her clothes. Once she got really aroused I told her to take off her pants and then I started to feel her through her panties and she was really really wet. That's when I started to eat her out and finger her and make her cum. The second time happened kinda the same way, I ended up eating her out but she didn't touch me because I felt Insecure about my body.

It almost happened a third time, when we were both really high and she was masturbating right beside me and was whispering in my ear to touch her and fuck her. But me in my fucked up state was scared and said no and fell asleep.

Buuuuuut I find myself wanting her to touch me when I'm really fucking turned on and that's what is conflicting me. there was one time when we were cuddling and she pulled my body closer to her and she had her mouth on my breast and her hand resting on my crotch over the blanket!! She was definitely asleep I think but she's just really affectionate to me in her sleep. I kept moving my hips to "rub" her hand against my crotch because I was so desperate. But she was asleep and I was sexually frustrated. This happens a lot. She will scratch my back under my shirt, rub my back in circles and will touch my belly and get close to my breasts as part of the massage during her half asleep state. And of course in a moment of weakness I'd be turned on.

And then there was last night, when we were both high after eating some edibles and driving around after a party. And a couple of times during this night she's smacked my ass (not something she normally does) and I took it as a playful thing, and she ends up going home with me to sleep. and for some reason we were laying on opposite ends on the bed, when she playfully grabs my belly under the blanket because she knows i'm ticklish there (don't ask I know it's weird) and she stops and rests her hand on my pussy under the blanket and over my pants. And every fiber in my being wanted it but I was scared. I kept saying I was scared and she told me not to be, to enjoy the pleasure and the moment. I heard her masturbating and moaning while stroking my crotch but again, I fell asleep.

I don't have romantic feelings towards my friend at all. i just enjoy being touched and felt on and I guess because I trust her and am comfortable with her I allow it. I say that I think she is in love with me because one time I was singing Lucky by Jason Mraz and I was singing the verse "I'm lucky I'm in love with my best friend.." and she was like "you're not in love with me!" And then told me "but yes I'm in love with you" and gave me a weird look. Then after a few moments she said she was just kidding. It was just weird and made me think.

Another reason I think so is because I'm currently talking to this guy who I think I love, and she hates it and doesn't like him. She made a comment about making a video of her grabbing and playing with my ass and sending it to him to make him mad. But my issue is because she had previously sexted him before and I was so angry and hurt that she could betray me like that.

Soooo what do you guys think? Is it normal for best friends to mess around like this? And do you think she might have romantic feelings towards me??