Don't you have a condo association that votes on these things? Doesn't
your girlfriend participate in the changes? Won't she also benefit by
not having to carry her garbage so far? She could toss her garbage
off the balcony to the dumpster and save a trip. Keeping the drapes
closed is probably a hugh plus to the other tenants not wanting to see
you both.
There's no economic loss until she goes to sell and perhaps the
dumpsters will be elsewhere by then.