is this fd?

一個識左4yr 的fd,有喜有悲lots of experience..we also in a制服團體4yr
but i can't afford學業so leave,but our fdship also change...
in this中秋節i and my bf saw her and some fd
fds saw us said hi, want to sit down and talk with us
but she didn't say hi or bye but say
快d行la, 5好左住人la~快d行la
fds didn't want this but she said快d行la*3
at the end fds says bye
but識左4yr 的fd,haven't say anything ....
y do we become this?甘耐無see hi都5say
also i haven't得'醉'she
y will become this?