1. working out fasted is ok as your body uses fat to fuel it now....and from my understanding morning workouts fasted are good for you
2. if you have not really done much working out before crossfit...you are probably gaining much muscle. Just think about it, crossfit is very extreme and will make your body produce more testosterone....eating paleo does the same thing...add them up to a woman who does not have much to begin with and you get muscle...just look around to the female "fire breathers" in your box. Also if you have not worked out much before crossfit your body is responding in a big way by getting stronger and putting on the lbs. of muscle it takes to get stronger. Flooding the body with all of the good foods that paleo makes you eat I think helps build good solid hard muscle.
3. I say eat what you want. You probably don't have to worry about VLC diet because of the extreme nature of what you are doing. Just stay under 100g of carbs....and you probably are not even close to hitting that if you are 100% paleo
4. Eggs and Bacon are really good....I eat lots of both...even together....they make me happy and to me are one of the reasons to enjoy paleo
I have been stagnant for over a month now in the weight department....I also have kicked the working out way up as I work out with a pro who has really changed how I "lift heavy things"...I am getting way stronger and athletic over the past month. Oh it gets better though as my belt is getting still looser.....so I am not loosing weight but I am loosing excess fat that my body does not need and making lots of muscle at the same time.
Keep on with crossfit and paleo...take pics every month to get a visual...measure your parts that are fat and keep track of it.
It seems you are at the point now where the scale does not matter.....that is awesome!