D'Argo's a bit of a drama queen here, isn't he?
The Farscape Wiki has the scoop here.
Granted, I'm sure it really hurts to discover that your girlfriend has been unfaithful - and with your son, no less - but D'Argo's an adult, not an emo teenager. I can see him crying, as he is a big softie beneath that meathead exterior. I can also see him getting very, very angry -- or drunk. But that practically suicidal gesture towards the end of the episode is taking things just a bit too far.
Elsewhere, though, the character moments are not bad. Chiana's explanation for her own behavior - while "squickish" - fits her background and her identity as a "free spirit." It also makes sense that, after the drama of the last episode, Aeryn would retreat from her emotional connection with John and go right to the physical. As we'll see in the next feature especially, Aeryn really doesn't think too highly of herself, and it definitely frightens her that other people would risk their lives on her behalf. And while we're on that subject -- poor brain-damaged Stark. That obsessive hope that he will be able to find the right planet for Zhaan is pretty much the only thing that's holding him together at present -- and even then, we still see him cracking around the edges.(See also: that little temper tantrum when Zhaan refuses to let Stark see her scalp.)
As you can see, there are good scenes in this episode. I'm not sure, however, that the supposed main story involving the religious zealot really holds things together all that well. That plot is only -- okay.
This script is a mish-mash of the good and the mediocre.
The performances are solid, but not extraordinary.
Ehh -- there really isn't much of a message here. The episode just kind of sits there on this front.