My sister happens to live with me and my fiancé. I am currently pregnant, 2nd trimester. I started to notice that my sister is flirting with my fiancé. She wears short shorts that are hardly shorts at all. I was not thin before, and now because of pregnancy I have gained 15 kg. I'm very self-conscious about my weight. My sister knows it, but it's as if she's trying to jab me with it on purpose. She has always been like that, she talked to all my boyfriends, she even dated one of them after we broke up. Now I'm pregnant and it's my future husband. Is that normal?