she wanted your attention,she's inlove and she dosent know how to control herself!..she was feeling lonely and she thought to turn to u so she cud feel better...or prolly she was thinking of something she wanted to like forget about and she needed you but u kinna 'werent there for her'..dude u yawned

...
so she was feeling rediculous and maybe bad but she didnt want you to like really understand it(sorta like fronting) so she said that...
or maybe she had a lil something to drink?...its possible...
i aint gonna lie i'm a lil confused too...but it shud be one of the stated right here!