Oh my giddy aunt. What a mess. I hope you kicked your "partner" in the goolies for that.
If I was close by, for a modest charge I would cut off the bottom of the door and fit a replacement strip along at exactly the right height then encourage you to repaint the door. Or I would fit a new door for you.
If I was close by, for a modest charge I would cut off the bottom of the door and fit a replacement strip along at exactly the right height then encourage you to repaint the door. Or I would fit a new door for you.