Please don't eat honey... think how it will feel if you get up the next day and find that 3lb has turned into 5lb! You will feel 10 times worse and you have come way too far to give up now!
The weight really HAS to go, there is no other option on this diet as long as you follow it. Some days our bodies do random strangeness like decide to hold onto water, or refuse to let go of the fat for whatever reason, but scientifically there is just no way that you can gain fat weight whilst on the diet. The weight you are putting on is NOT fat, it could be water, could be clogged up bowels, an injury/muscle strain of some kind (causing inflammation in your tissues which also causes water weight-gain) could be anything at all but i can guarantee you that it is not fat weight, which is what really counts here.
Remember that no matter what the scales are saying, you ARE losing and burning fat and you are doing this every single day. Hang in there and that 3lb will drop off, i'd bet within the next 2 days at most, then some more on top.