Given a real-life anecdote of a complex ethical situation, judge whether or not a specific person is wrong here. Answer 'not answerable' if more information is required and 'answerable' if all the information is sufficient to answer who is wrong in this situation.

Example input: So on one hand I don't think it's the best thing but at the same time it's led her to talking about how she cut(s) herself and a kid who told her to shoot herself which she wouldn't have talked about otherwise.
Example output: not answerable
Example explanation: Here there is no information about how severe the situation was or what was her reaction after telling this to the author. We also do not know whether she told this on purpose or not. More information is needed to determine who is at fault here.
Q: 📷 

There was an argument that happened yesterday.

My  sister and her boyfriend moved into an apartment a week or so ago and  my sister's childhood friend (female) came to visit (They've been  friends since they were toddlers).

They  bought a mattress and it arrived yesterday and the boyfriend was mad  because it arrived right as he was leaving for work and he didnt get to  test the bed.

The  friend stayed at the apartment for about 8 hours hanging out with my  sister and she got to lay on the bed before him and it pissed him off.

My  sister and her boyfriend dont have living room furniture (it arrives  soon), so the 2 laid in bed to watch netflix and talk and the only tv in  the apartment is in the bedroom where which is where they spent the  day.

He  kept complaining about the friend eating their food and she being in  the apartment without him because apparently he doesnt like people in  his apartment and he was complaining about the oils of the friend in the  sheets and wanted to wash them because he immediately assumed them as  dirty.

He  keeps complaining about how he didnt get to enjoy the apartment because  he's been busy cleaning and sorting whatever furniture they had then  going to work immediately.

My  sister said it shouldnt be a big deal and all she did was hang with her  friend and watch netflix and had food here and there and lay in the bed  because as stated, no living furniture.
A:
not answerable