Well, I didn't love our puppy immediately, although I adore him now at 10 months and he is a treasured part of the family. They are not your own flesh and blood, so it can be hard to form an emotional connection with them as you would with your own child for example.
They are overwhelming at first, and they poo and wee and bite and are restrictive, it takes a bit of time to re-adjust to this, even if you thought you were ready, bit like PFB children! You are knackered and alert to their needs all the time, depends on how easy it is for you to let the other stuff go, like cleaning, chores etc etc.
For me, I got a bit confuddled! I read ALL the books going about having a 'perfect puppy' and wanted to do it 'right'. I turned dog ownership into a chore rather than a pleasure. So, it wasn't like I wasn't catering for his needs or being in any way cruel or neglectful (quite the opposite for sod), I was sort of over catering and walking, training, playing like mad.
I got some great advice on here and just chilled out a bit too. I started a thread and others actually came on and said they had felt the same too with their puppies so I didn't feel alone thinking the thoughts that I did.
OP you might just need time to adjust, take each day as it comes. Did you want to dog as much as your DH did?