Married, two kids 8 and 3. (I'm sure the eldest also did this...)
3yo is a sweet, lovely little boy. He's very loving and tactile. I work PT shift work and DH works FT, two days out of the home and the rest wfh.
Whenever DH is out and I have the kids, they hardly ask for him. Whenever he's around, my 3yo default wants him. If he's feelings cuddly he probably wants me, and if he's scared or upset it's me, but bedtimes in particular it's DH.
When I'm doing bedtime if DH is out he doesn't seem to mind at all and doesn't ask after DH! Tonight I'm doing bedtime for the first time in three nights and was genuinely looking forward to reading a story and giving him a love, and he cried so hard for his dad. I wanted to give DH a break, wanted to spend time with DS and so I just carried on, geeing him on and getting through it, but I was so sad that he didn't want me there! He was overtired and cranky but I just felt pretty rejected and felt quite tearful myself.
I bloody made you and fed you for over two years, you ungrateful so and so! 😉
I also, not to drip feed, would say I do the lion's share of the childcare (was SAHM for 3 years) took him to all clubs and classes, and would say I am more able to do the playful/responsive parenting, and so I find it a massive kick in the fanny as DH is more prone to losing his temper and often snaps at the kids. DS also occasionally says things like "No I want daddy, I like daddy more". When he does I just say "Well I love you and I'm doing bedtime tonight". I try not to take it personally but struggled tonight, had a fairly rubbish Christmas this year!
The only thing I can do is just ignore it and remind myself it's a stage, right?