Most Helpful Guy
You need to learn to be independent and be fine on your own. That's his little sister there is no competition for attention cause she's already won and will for years to come. He needs his time to be with his family. If you care about him give him that time and cherish the time you do spend together.
Most Helpful Girl
they're family. sorry to say, but family trumps relationships. let's put it this way, would you rather a guy who blew off his little sister when she was in trouble for you? i can understand why you'd be jealous, but she's not a threat to your relationship. take a deep breath. plan a fun outing for you and your boyfriend