She doesn't sound cold, she sounds matter of fact!
She's written this in a 'business case' type of way, but using the wrong terminology (REALLY wrong terminology).
Op, are you SURE you didn't write about this before, because it is sooooo familiar.
You need to start using the correct terminology.
You say DP rather than DH, so I am assuming you are not married.
You need to make things very, very clear with your company. He needs a detailed written contract. You need to make sure there is NO way he can be seen as a partner of the business, and therefore entitled to a share of the business if you were to split up.
You need to start using the proper terminology. You are the primary caregiver, and will be for the foreseeable future. All your DP is doing is the morning shift, to let you get some uninterrupted work done.
You BOTH need to contribute to the household and to your child's fund. That needs to be agreed to by you both, and stuck to.
If you DO decide to get married, I would advise seeing a solicitor to get a pre nup AND a post nup agreement to protect your company. Pre nups aren't worth a whole heck of a lot, but post nups will often validate a pre nup and make the agreement far more likely to be taken into account should you split up. Your DP will also need to see an INDEPENDENT solicitor to receive advice as to what the agreement means.
(It could include things like not receiving a share of the business, but depending on how long you've been married they could get spousal maintenance for X years based on a the income of the business, or a Y payout, based on the value of the business - and other assets).