Yes and in most cases one in the relationship feels they are contributing more than the other and then starts to resent the fact that are(doing all the work,) We all know that often that is not the case however that is the way it feels to that person.

Then there is spending money on things the other person does not deem necessary or important.

I have witnessed friends get upset with their partners and go off on a spending spree.

My ex wife realized she had forgotten about our anniversary when I presented her with gifts and a card that morning. So to make it up to me she went out and bought herself clothes that she wore on the weekend trip to Santa Barbara with her justification of "I know how much you like it when I dress up for you!" Happy Anniversary honey.