Rabbit only nurse once a day, so you are not likely to see it. By two months, they should be pretty well weaned, and mom will definitely be wanting a break. Have you seen the babies eat pellets and hay? I would separate them from mom, and separate them from each other into a girl and boy camp. By 3-4 months, you’ll start to see them fight. You’ll see it with the boys first, and later with the girls, so they will need to be housed separately as long as they are intact (not spayed/neutered). Once they are separate from mom, don’t reunite them. She will forget them quickly, and will probably attack them if you try to reunite them. Bunnies are all different – some youngsters can live together for 6 months without fighting, some will start to fight at 3-4 months. It’s hard to predict that. But with all their intact hormones – it’s bound to happen sooner or later. Weaning does happen all on it’s own. Rabbits are eating pooping machines. Lilo doesn’t need to teach her babies how to eat solid food – their instincts kick in and they eat what they see her eat. Lilo is trying to tell you that she had a great time raising her babies, and now wants to be alone. They will have different food needs. The babies will need unlimited pellets 15% protein, and mom can start to come down to 12% protein. All need unlimited hay.