Assuming that the speakers in each of these poems is speaking for the author, we have a pretty good indication of how Dorothy Parker feels about romantic relationships.
"Men" is the most obvious of the two poems in terms of how Parker feels about men and romance. The poem refers to an unnamed "they" throughout, but of course the title tells us just who she means. This poem is an unflattering depiction of the things men ("they") do to bend women ("you") to their will.
First, men claim that women are their "morning star" and appear to like women just as they are. In other words, men knowingly tell women exactly what they want to hear in order to win them over. Then, when women "return the sentiment" (in other words, once she is "hooked"), everything changes. Men want only to shape and change women into whatever they want them to be:
They'll try to make you different;
And once they have you, safe and sound,
They want to change you all around.
Your moods and ways they put a curse on;
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