My boyfriend said my sister was the best looking girl in the house. I disgusted him.

Like i mean this in a nice way!! My (19M) boyfriend (20M) and I live together, and our family is often in the house as well. He's also close to my older sister (20F) and treats her like a little sister. <br><br>My sister came over to my house yesterday, and she looked really good, but this isn't about her, i'm not here to bash my sister, i love her. Anyways, i was looking very good myself, and my boyfriend was like "you know i gotta admit, you're the best looking girl in the house." and i got so disgusted. <br><br>i'm his girlfriend. i'm the one who does everything for him, i've been loyal to him for so long, and he's complimenting me over my sister who just came over without doing anything for me? <br><br>I'm so disgusted.