I did the same with mine a few weeks ago - I mean I used extra virgin olive oil and dumped a whole bunch of middle-eastern herbs in there (zaatar!).
Silly me, I put it in the fridge and the next morning it was cloud and had the consistency of jelly, so since that time, it's been in a container on top of the microwave - and I've dipped in on occasion to get some cheese.
today, I went to grab some to top a salad I was having for dinner and noted that the bottom edge of the one cheese cube left is turning pink in color. I gingerly took a sliver and it tasted all right. But, does anyone have any idea where the pink color came from, and most importantly, is it time to dump it and make a new one?
Thanks for the help!