<human>: Background on our habits: I'm much more of a saver and am generally conscious of where my money's going. He carried several credit card debts for years until I talked him into paying it off, but money just isn't a great deal to him. We both have secure jobs that pay well. Our relationship in general is great.

Lately, I've been thinking about how to fairly split our expenses. When we go out to eat we each pay every other time so it's fair. I usually purchase all of our groceries, and he'll eat whatever dinner I cook. He stays at my place almost 100% of the time, to the point where my neighbors know him more than they know me. The problem I'm having is that he hasn't offered to chip in with either utilities or grocery bills. I brought up this issue with him and he was extremely reluctant to contribute anything. He says that he doesn't use up much of the groceries, and said that I'm just looking for an issue to stress myself out. I definitely don't want to be someone who mulls over every penny, I just want expenses to be fairly shared. He still pays the utilities at his own place, with two roommates to help out with the rent. From his POV, I can see him being unwilling to pay 2 bills.

I'm not asking for him to start paying me rent, but I want him to split half of my utility and grocery bills. Am I being unreasonable here?

Can you summarize the given text in a few sentences?
<bot>: Bf stays with me all the time but doesn't chip in for utility or grocery bills. Should I ask him to?