Im pretty sure my almost 2 year old has separation anxiety with her baby sitter..... my husband's…

Im pretty sure my almost 2 year old has separation anxiety with her baby sitter..... my husband's aunt watches my kids while im at work. It wasn't terrible until she retired. Now every time i try to take her home she screams for atleast 5 to 10 minutes while we leave. The sitter doesn't help. She reaches for her as im putting her in the car seat and says "you could stay if mommy will let you" making me the bad person. Im so tired of being the bad person. So she basically lives there and i miss her so much. I feel like the worst mother ever. I just dont know what to do. Ive read online about how you can fix the seperation anxiety if they don't want YOU to leave but i dont know what to do when she doesnt want me..i have to work to pay bills. I just feel like me working has caused her to lose a bond with me.