He doesn't like me as much as I like him...

Okay I have been flirting with this guy for what seems like forever, and I constantly doubt myself around him because as much as I would like to be serious, he seems super casual about any time of relationship. He doesn't always reply to me and only uses snapchat, but the worst part is I am totally in love with him for seemingly NO REASON. please goddesses of this app send me some guidance. I've never felt so out of control of my emotions and love life.