Oh honey, of course she loves you - you are managing a lot at the moment, and it sounds like you're having a tough time.
My dd had a HUGE phase of adoring dh - I could do nothing with her if he was around (although she would be fine with me if he wasn't) - it started early - 6 months or so - and the look on her face when he came in from work (I worked from home pt at the time) was just sheer joy.
Luckily, she was my second, so I had ds (who was very attached to me at the time!) and could be a bit pragmatic about it, but it is very, very hard to be pushed away.
From what you've said I assume the move to work has been fairly recent - so my best guess is that you're both readjusting to a new way of managing your relationship, & as others have said, just missing each other.
Can you manufacture some special mummy & dd time where the two of you jsut do some nice stuff together without him around - whatever suits the both of you and will be totally stress free and all about fun - feeding the ducks, playing with playdough, snuggling up with a book, having a bath together .... anything. Don't put pressure on or make it a big deal, just get used to spending time together and enjoying it.
Fwiw, although dd and dh still have a special bond, her favouritism wore off, and if anything I'd say she's closer to me that dh now.