I don't know?Watch
Why don't you ask her about it? I know it seems a bit silly but you'll begin to understand her feelings more so you'll know where the relationship is heading.
Okay, now I know my girlfriend has liked this boy for ages, before me and her began going out. However, I get really jealous because she like all of his Instagram pictures and selfies. Now this doesn't bother me that much, but their is this huge thing going around which I'm sure you would of heard of where you put the sock over your penis for testicular cancer awareness... My girlfriend was the first person to like this photo of him, where he was literally naked except for his penis sock! Is it right I'm getting jealous? It's the fact that she pays hardly any attention to how it makes me feel? Am I just being stupid?
Unless you lie her so much that you'd rather go out with her regardless. But 9/10 times these kind of relationships are doomed and end in misery.