a member

A little over a year ago I met a group of people on Twitter. We had similar senses of humor and tastes, so we became close very quickly. Among that group was a girl who, for simplicity's sake, I'll call L. L and I became pretty close, not best friends, but close enough to chat privately and introduce each other to other friends. Around the middle of last year, she and I gradually stopped talking, and suddenly there were no more messages. But recently we started talking again and I started developing feelings for L, the only problem is that I had no idea if she liked me back or not, she called me "babe" and she would reply to some of my messages with hearts, but every now and then she would just ignore me all day. L didn't respond to jokes, sarcastic comments, or random facts. I don't know if I'm uninteresting or if she was just messing with my head. I'm slowly giving up, even though I really wanted it to happen. I think I'm just afraid of getting hurt and To ruin a friendship I value so much. I can barely sleep at night thinking about it, does anyone have any advice?