How to Help a Pregnant Wife

She asked why she should have to use her allowance. She has personal savings, household and baby. And why can't I just do this one thing for her? I told her there's literally no reason to. She said my options were to pay for the spa day or shave her. I laughed in her face and walked away saying neither. Since this all went down on Sunday I've been getting texts about how fucked up it is that I won't help my pregnant wife. Am I really the asshole in this situation because I don't want to shave her and don't want To give her more money? 8k is a pretty nice allowance. We have a housekeeper right now so she