I think Marten has had much better relationship luck than... say Hanners? or Marten's mom? or Marigold? or Sven?
Well, Hanners ain't gonna happen. Her pretend date with Sven was probably the best she will
ever do (hugging her dad, in public view, without anxiety medication, was a HUGE milestone, though).
Marten's mom, well... she's seen plenty of action, so to speak. And was married at least once on record. So she does have that up on him. But besides Mr Reed, there hasn't really been anything worthy of note.
My bad. Fixed the typo now.
Marigold has some social issues to break through. It's not that she
doesn't want to have a meaningful relationship, but she does need to get past the delusion that she isn't worthy of one (I know that feeling well...)
Sven is probably worse off. He's done a whole bunch of banging and, until Faye came along, it didn't mean much to him. Faye was most likely his first and last meaningful thing (that "date" with Hannelore happened shortly afterward), but as of his last appearance, he seriously regrets fucking that up (in a literal and metaphorical sense...)