Anvil's got you covered. Every time you reengage, it gets worse. I know it. I had to deal with my ex recently for the first time in months, and everything resurfaced again.
The difference is -- it's fresh for you. For me, it's further back in the past. So the bouncing back from all the unhealthy codie stuff happens faster, and easier now. But some of it is still there.
Take care of yourself. Seriously. (((hugs)))