Not a cottontail so I hope you're happy with your new pet! I'd suggest separating your rabbits for a while, confining the new one to a cage so the other one doesn't feel like their space is being infringed upon. This will also keep your... nottontail (lol) from eating the other bun's food...
Personally, I find caring for my rabbit not high maintenance at all. I have a disabled rabbit and even now I find his care relatively easy. Back when he wasn't disabled, he was litter trained and it'd take me roughly half an hour per week (which is not a lot of time IMO) to clean both his crates...
Hi there, i'm really sorry to hear about your situation. It takes a lot of bravery to post to a site for rabbit owners and rabbit lovers as someone who doesn't like their pet or particularly want a rabbit. I hope other posters realize that this animal was forced upon you and you're just trying...