Brittbugs - I'm sorry to hear what you went through but no, the OP should absolutely not have to spell out her financial situation to the 'D'P. It should be bloody obvious! She is the mother of his child fgs, not his flat mate!
This kind of set-up is ridiculous and I can't believe it
But he either needs it spelling out or she needs to have that awkward discussion. Money discussions are always difficult and he may not be making her feel awkward on purpose but it could be her own feelings contributing towards that.
When I had to have money discussions with my DH, I felt upset, sick and incredibly awkward because he earns more than me. As soon as the conversation started, he was mortified to hear how I was feeling and thought everything was ok, as I asked for small amounts when needed.
I was scared, because of the past, that's why I felt the way I did but my DH wasn't to blame for my feelings about it, those feelings were maintained and enabled by my ex.
What I'm trying to say is the conversation needs to happen between them and the response will tell her everything she needs to know.
I just can't paint everyone (male) as an abuser. Yes there are different levels and the level I encountered doesn't trump anyone elses, least of all the OP's.
It sounds like from her other posts that they need a discussion regardless of how awkward it is, not a half attempt at discussion then wound up by 4 pages of responses telling her to leave, it's abuse, he's controlling and her being told she is wrong when she says he is nice.