What do I do when I work closely with someone who feels hurt at any boundary and I worry would implode and feel offended at a boundary? And then what do I also do if they are the type of person who won’t ever let you go and won’t ever let you say no to them if you don’t have a boundary?

I’ve tried not speaking much to avoid her lack of boundaries, but I feel like she gets offended at this and it feels like there’s tension... (I am NOT giving her silent treatment, I’m just being a quieter person). I feel very much like the bad person here, just for wanting a boundary.