I wanna share my feeling?

u knw, im in th cl just nw, th cl suppose to end by 2pm, but its already 2.20pm smthing, so i took my phones out to reply my friends text(im hiding it with th notes but apparently dnt knw hw th lecturer could see me using th phones). then the lecturers scolding me oh so loud, seriously she was so angry wth me & she wants to keep my phones until tmro, so i gve her my phones.. after tht she cntinue th cl, eventually she ended th cl by saying 'THANKS FOR RUDE'. i actually felt abit awry bcse made her mad at me. i knw i should apologise to her, but th point is, my ex boyfriend(he & i is in th same course & th same cl)is her favret student in cl, no she didnt tell us but we all 6 student in th class realize it(we tgthr 7 stdent only in th class of paramedic science), when my ex boyfriend use th phone in th class even talk to th phone in class INFRONT of her tht day, she never evr mad or scold him & she even let him went out of th class to talked. bullshitting seriously. am i rght? (one of our medical college rules are th student probihited to use th handphne in college area) huhh.. im getting fed up to face ths kind of lecturer tht love her favret stdent mre than we.