Help

I have a crush on a girl for a couple months now. She openly flirts with me, holds my hand, buys me my favorite things/trys to spoil me, and always says she misses me. When i asked her what we were she said she didn't know and wanted to figure her self out but that later changed to she just doesnt want anything serious. She admitted to knowing i liked her but didn't set boundaries so she wouldn't lead me on. However she set boundaries with another friend as she didnt have feelings for them. She only does these things with me and is only comfortable with me. Last time we hung out i was tired and delerious and she had ended up putting her arm around me and cuddling. So am i crazy and adding more than there actually is? Or is she just leading me on?