Violence against women is a major theme but as of episode 4 it is primarily non-sexual violence.
There is discussion of revenge porn being made and released. It is mentioned briefly in episode 1 and more in episode 3, when the victim shares how it impacted her mental health.
Towards the beginning of episode 4, one character initiates sex and their partner backs off and does not reciprocate, so the first character does not continue. There is no pushing of boundaries and the scene is fairly short, 30-60sec.