do you know what is the feeling when someone that very close to you hiding you from other?

do you know what is the feeling when someone that very close to you make you jealous with his ex?

do you know what is the feeling when someone that very close to you rarely show up his deepest feeling on public?

do you know what is the feeling when someone that very close to you more atten to other girl?

does something wrong with my feeling? does it is normal? 

does something stupid if i feel i was lied with my own feeling?