Pinkhoodie, don't do it!!!!
If you are already discouraged I would not be going for milk chocolate yet, it might play mind games with you and get you off plan
If you need chocolate, how about the 3 minute chocolate "cake"? I make it almost every night and it's scrumptious!! Have you tried ricotta cremes? I have and though I'm not fond of the pb cocoa one, I love it mixed with vanilla and splenda. Reminds me of the sweetened mascarpone in tiramisu. Yum.
Other chocolate possibilities- choc PB cup from the recipe section
- Jello SF pudding cup , preferably with a scoop of protein powder
As for the choc in the fridge, either throw it out for now or tell whoever it belongs to eat it ASAP