Friendly but odd behavior

Question
We have recently just bonded together a nurtured male and a spayed female.  The bonding process seemed to go well considering the fought so rough the first time they met.  However after having them in the same pen for quite some time they seemed to be not as hungry or interested in food as they once were.  Is due to having a companion now and feeling comfortable?  Are they in heat?  Are they sick?  Can rabbits give each other illnesses like digestive problems?
Also the girl seems to be more dominant she is the one that constantly is on him, and lately she's been licking at his eye.  Is this normal?
How many heads of romaine should we feed a rabbit a day?
We appreciate any and all advice and information recieved.  We would like to continue to have healthy and happy bunnies. Thank you, Josh and Rachel

Answer
A lot of newly bonded pairs won't eat as much for a while because they are in love and food just isn't as interesting as their new partner.  They can't be in heat if they are both fixed.  Rabbits can give each other illnesses, but those would be more along the lines of respiratory infections.

As long as he doesn't mind her licking him, not a big deal.  Generally the dominant rabbit is the one getting groomed.

I might check this FAQ for info on quantities of veggies to feed - http://www.rabbit.org/faq/sections/diet.html  A variety is always better than the same veggie every day.

There are also other FAQs at www.rabbit.or if you are interested.

Kim