who is wrong me or her ??

i need youto gudje between us my any my love

she told me not to told some person lets call him mr (x) that i know her

then i meet this person and he was asking me if i know her and i said no i never heard about her

he said that he is in love with her

i said ok i don't care cuz i don't know her

he told me that she told him that she was in love with me but she is his now

i told him i told you that i don't know her and don't care

__________

the probleme is she is know upset

she said that i offended her when i said i don't care about her

it's weird i don't know what to do

so plz

first

gudje who is fault is this

second

what i have to do while i'm in love with her and i love her so much

thanks 4 ur answers and ur time

peace all