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.
Q: I was house sitting for a friend since Friday.  I had my bf over on Saturday and didn’t think twice about it.  I never discussed it with my friend who I was house sitting.  I never thought it would be an issue.  When my friend came back I mentioned that my bf really liked this coffee table she has.  She acted a little weird and I pressed her what was wrong.  She said she didn’t appreciate that I invited someone over to her house without asking her first.  He’s not a stranger, he’s my bf.   I really didn’t expect her to care.  
A: 
answerable