Sarahaeyo -> Maybe it was 'Saranghaeyo'. that means 'I love you.' wnyi wah? -> I don't understand this. maybe it it is not korean.

On a fifth time reading: The "wah" part of the second one could have been a oa, also written wa - "come". But the first word must be different. w followed by n is not possible in Korean. unni maybe? That would mean "sister", or just a female aquaintance who is a bit older than the (female) speaker. But it could be everything, really. All we seem to know is that it ends in -ni.