The actual reason a person chooses to do the laundy, and other household chores, is because doing so allows him/her to take care of and provide for those they love.
A person chooses to take care of their family because they love their family.
However, resentment builds over time when the resentful person has neglected his/her own needs and feels tired of making the sacrifice. The perception is that others needs are being met "all of the time" while their needs are not being met at all.
If you take care of your own needs, taking care of others will feel like a gift, rather than a burden.