Yeah, my fella is like that too. I don't think its too much of taking responsibility with my fella, more that just not interested in some things, esp the mundane stuff like dinner. I still ask occasionally to see if anything changes, but no.
I do what AAAAA says. Just make my own plans, if he doesn't like it, or complains then he can go eat something else that he can make himself, or get a takeaway. I've got to like it anyway, as I am a veggie and he isn't, so I get to eat what I like! I do go soft on him though and make him one or two meat meals a week.

He's like it with days out too, or things we can do as a couple. Hardly ever makes a decision or comes up with a plan. Now I just say to him, I fancy going here, wanna go? He either says yes or no, and I will go anyway with or without him. He nearly always goes, but very occasionally he drags his heels half way through the day or has a little strop like a 7 year old while we are out doing something because he doesn't want to be there. I just tell him to stop ruining it for me, and either buck up or go away as it was his choice to come. If he acts like a child, I will treat him like one!! Sounds rough, and it is, but it saves me from being resentful, gets it out in the open, and we work things through then and there.

I did know he was like this from the off tho, our first proper date at his house (200 miles away) he sat there and out a new kitchen blind up!! I mean, how romantic! I teased him and now he hates to be reminded of that day, say's he was awful! I think that knowing that about him, trying to change him (briefly) and then accepting him and his ways has really helped me. I just try to focus on the good points about him and the things I love about him and try not to let the stuff annoy me too much. Hard tho!! :-)