Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: So my wifes sister is your typical 19 year old drama queen, everything in her life pretty much turns into a big catastrophe and everyone around her is wrong, she loves to talk about how shit other people are and how shes perfect. She has also stolen items from me in the past but been caught out so is very light fingered.

Recently she broke up with her bf and decided she was going to move to a different country (which i was thrilled about as I wouldnt have to deal with her always coming around home) so i let her stay at our house untill her leaving date, around 2 weeks.

Wife and I have a 4 month old son and our house is already tiny so this didnt end up being ideal, but i stuck it out as i knew she was leaving.

Moving forward 2 weeks my nightmare has cme true, shes back (decided she couldnt live alone in a new country) and just expects to live with us.

Ive voiced my concerns to my wife who tells me im an asshole as we cant just kick her out as shes family, i try tell her im 30 years old dad now, we have a newborn and dont want to live with her thief kid sister, i also tell her how all of this makes me feel as i dont even feel comfortable in my own home anymore, she still doesnt understand and thinks im an asshole.

AITA?

TL;DR AITA for not wanting to live with wifes thief teenage sister whos life is a constant drama? 

not wanting my wifes 19 year old sister living with us