My best friend jealousy?

She might be in love with you. It sounds that way. You are worried about it so much....Are you in love with her? She probably does not have a bf, she just said that to get your attention. She really wants you all to herself. Just be careful if you are going to stay with you gf because the bf might come in between ya'll. But I think you need to really weigh the situation and figure out where your heart and mind are really at.