Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: an old conversation i had with helen before she disappeared to the north and got all busy with university . it has almost been a month i have n't talked to her . gah , sometimes it 's sad that i can only interact with sane people in such a short time . amal and lina are barely online lately .

Question: Why has Helen been ignoring the narrator ?
Helen is focused on her studies .
She's been busy with university.