<human>: Can you give me the gist of the text in a nutshell?

I have been with my fiancée since June 2, 2014 and we got engaged in June 5, last month.

She's a pet groomer. I was not a dog person before her. We have dogs and cats. On most weekends she goes off to dog shows and her younger dog is a champion. 

My fiancée is pregnant, about 18 weeks. So she will be taking a break from dog shows once the baby is born in December.

Here's the issue: her mom and her both want me to learn grooming and handling so that I can continue to show dogs and make sure I groom the dogs properly in their absence.

They have joked about this for nearly a year. Recently it's come up as "someone is gonna have to learn how to groom and show."

I've been quiet about it for so long. But I don't want to do this. For one thing, grooming is not something you pick up quick and it's not easy on the body. My fiancée bought a business from a woman who was forced to retire due to the strain grooming put on her back. 

Essentially, my fiancée and her mother want me to work two extra jobs for free, after learning.

I have absolutely zero interest in either career, and I don't want to do this on my days off. 

How do I tell my fiancée without her feeling like I don't love her? Her mom heard my one objection last fall, and simply said, "you do stuff you don't wanna for her like she does for you."

I took my fiancée to an NFL game, apparently that's the same as learning all about grooming and showing and being great at both for free.

Am I being ridiculous? I feel like this unfair to expect me to become a groomer and shower simply because I'm with my fiancée. I have no problem attending shows, helping my fiancée with grooming at work. But I'm not interested in it as a career and not as a hobby that I won't be compensated for.
<bot>: fiancée wants me to be a groomer and handler and learn the industry when I have no interest. How do I tell her without upsetting her?