It took my first rabbit, Benji, about 3 days to 'love' me.
It took my second bun, Pippin, over a year to even act particularly relaxed around me. I was so upset he didn't love me and shower me with kisses like Benji did, but I worked every day with him, and it has totally paid off because he is a total lovemuffin now and doesn't stop licking me all day, and will approach me for snuggles and leap on my lap, which I NEVER thought he would do. I think I even posted on here a few times about how he didn't even seem to like me! Now he loves me to bits!
Rabbits are naturally prey animals, so some may take a long time to act like a dog or cat would to you after a few days, but believe me the effort is worth it. You need to work every day to secure that bond with your bunny.
There are some little things I used to do with Pippin to earn his trust:
Never walk towards a shy rabbit. Pippin would bolt every time I walked over to him. So instead I would get down low and shuffle slowly over, with my arms oustretched and talking gently. First few days he still bolted. But after that he started to understand the stance meant I wasn't going to hurt him. And also, I didn't pick him up when I did that for the first few weeks. So he associated my approaching him in a non-threatening way, with a big nose rub and a chunk of apple. And soon he started to approach ME when I started to approach him. I was shocked!
Ignore your bun. Don't 'demand' his attention. You're not really ignoring him- but he thinks you are. This means he is much more likely to be inquisitive and approach you. If and when he does approach you by himself, just let him do his stuff. If your hand is right there, then give him a nose rub, and then carry on watching tv etc.
Like suggested before, talk to and read aloud etc. to your bun all the time, and voice association with good things and cuddles with appear.
Whenever you groom him, make sure you give him a big treat after- a nice bit of fruit or a realllyyyyy long nose rub or cheek rub, enough to make him purr!! When i rub Pippin's cheeks, he will half close his eyes, grind his teeth gently and just totally relax. If I stop giving Benji nose rubs, he opens his eyes, and SHOVES his head right under my hand over and over until I continue lol. It's so funny.
Try not to enter his cage. I know you have to sometimes, but he needs to feel totally safe in there, like noone can get to him, so when you want him to come out, try and entice him with his favourite fruit or something.
Don't worry, just keep at it and even if it takes a year, I am sure that bond will appear, if you keep on socialising him with you and getting him used to you every day. The more time you spend with him, the quicker and more likely he is to give his undying love to you!
Jen