We have a 3 month old DC together and ever since DC was born DP has walked our dog 2/3 times alone. Any time the dog is walked it's either me doing it alone, or all of us together after I've asked DP to come with us. Never does he take initiative and decides to walk the dog without me, therefore the responsibility falls on me constantly.
I'm on maternity and DP is WFH, but never has any actual work to do, so it's not like that's stopping him. I've mentioned to him several times that he needs to help me out and walk the dog. He either gets annoyed at me and reminds me that when I was pregnant he had to walk the dog all the time (he's a staffie and too strong for any pregnant woman to be walking), or he says he'll do it and never does.
I'm genuinely at the end of my tether! Any advice?