For context I am 18, my Coworker is in her early 30’s. We work in an assisted living facility. I do both caregiving (CG)and medication aide (MA). The chain of command is that if management is not present in the building The MA is in charge. I work night shift so no management is present, When working with this coworker lets call her Lindsay i am the MA and she is the CG. Me and Lindsay started working together about a month ago when she started. Instantly she did not like me for reasons i still am unaware of. Lindsay has told me she will not help a resident to the bathroom “Because she doesn’t have time”. She has also lied to other staff saying i wouldn’t let her go home when she bled through her pants, when she didn’t tell me about that or i would have sent her home. It has been a huge annoyance but recently it’s gotten over the top. I was walking down the hall and heard a loud thud, i called Lindsay over the walkie to help me check all the rooms near there to ensure no one fell. Lindsay began accusing me of saying she isn’t doing her job and i assured Lindsay i just wanted to make sure all the residents were safe. Lindsay proceeded to shove her hand in my face to quiet me and tell me i could check the rooms by myself. I also ask Lindsay to let me know when Laundry is done at night so i can help her. Shocker she does not, instead she tells me she doesn’t need my help. Well two days ago i got off work and received a text from my boss stating i need to help her with laundry and getting resident calls. i was FLABBERGASTED at this as i had gotten 9/10 calls that night. What is your advice on how to handle this? i’ve already gone to management and nothing is getting done.