Help

Hi my name is kay. I had a best friend who passed away in aug 2020. She was married and left 3 bio children and 4 step children. I stepped up and came to help take care of her kids with the husband cuz he works all the time and also on probation and isnt allowed around children alone. Nothing like sexual or anything just putting it out there. Anyway. That was my best friwnd and wasnt gonna allow anything to happen to the kids. Anyway I have been in this house with all these kids and during this time the father and I have caught feelings for each other. It didnt happen on purpose or anything just happened. I never liked him before this or while my friend was alive. But yeah. So I didnt wanna talk to the children and he did. So I said alrifht and decided to tell them. And half the kids were ok with it and the other half arent. Its not about me and him its about the kids too. His daughter already has been having problems and upsey alot. In the process of getting her help. But yeah I dont know what to do. Im confused cuz I dont wanna hurt the children and have them all upset. Please helP