<human>: I found out today that my recent ex-girlfriend has moved back into my high rise condo building. In our relationship, her and her daughter lived with me. She is now renting a room from an older man that she met while living with me (I don't believe it's sexual).

She claims that this building works really well for her new job. The building does provide transportation to where she works, which is close by. I feel like this is incredibly weird and inappropriate.
Is it? And any advice on how to mentally prepare myself for the fact that she is still living there?

Could you distill the essence of the text into 1-3 sentences?
<bot>: GF moved back into condo building. Is that as weird as i think it is and how do I deal with it?