Hopefully I'm wrong but so far all I've read about it so far indicates lots of shame and anger associated with female sexuality.
If you look at it from the original sin perspective, it does come off quite tacky.
However, I'd propose two alternate interpretations:
1) I can imagine that what she is feeling is not far off from what the first women to break into the male dominated workplace must have felt. Shame because they were violating social norms, and anger that they were being made to feel shame unjustly.
2) Gender reversal - Cybertronians are, by nature, constructive/creative creatures. Before the war, even Megatron turned into a construction vehicle. Arcee however is clearly designed from the ground up as a death-machine. Her shame and anger at having been created to kill is akin to what some men feel, what perhaps all men feel unconsciously. Born into a world that wants us to build and create, but programmed by millions of years of evolution to take and kill.