you're just pointing out whatever we've seen in 10 without justification of DPC's writing choice. "Stephen at least tried" when?
Jade and him have terrible communication for two grown ass adults. Obviously reflected by her throwing the sink at you if you reject her and also second guessing every gesture by her husband.
What facts are you referring to? That he went to see a therapist? That's literally only one side of it. It takes two to fuck a marriage up. You seemed to miss the point here, we're talking about writing not which character has grounds to be fucked up.
Considering this is the first time we get anything from the perspective of Stephen, yes I have literally nothing else to appeal to. He "tried" by giving in to things he did not want, for her. Something she has shown no interest in, at least in how far we are aware.
Two people can be terrible in communicating to one another, that does not mean it was always so. Even if the blame is on both parties, that does not mean the blame is on both parties equally.
We had up to episode 10, only seen the result of their relationship falling apart. Now we get a peek into what caused the downfall.
Jade's entire arc from 1-9 has been my husband doesn't give me love.
She cheats with you because he's busy sleeping with college girls knowing his wife knows.
Now DPC does a smooth brain decision into giving justification for Stephen.
This just assassinates whatever basis Jade as a character has. It is not good writing or 'realistic' writing. Its just making things unnecessarily confusing so someone glazing DPC would be going "what DPC is trying to do here is make things grey.."
This is the same guy that thinks people will sympathize with Maya.
That's how she justifies her behaviour and her cheating to herself. This does not mean her husband was the cause. Stephen brought it up to his therapist years ago, Jade has been dealing with it for a much shorter time. Meaning what he told his therapist is most likely true. He stopped trying to show her love much more recently than she did.
His cheating (or his attempts at) seems to also be much more recent, I at least don't think it predates Quinn and her restaurant.
There is nothing smooth brain at showing the past that led up to the current state of affairs. He doesn't assassinate Jade in any way, you just had a completely one sided view of Jade as a completely innocent angel in all of this. This is generally how toxic relationships in real life fall apart as well.
People generally sympathize with Maya, due to her circumstances. It is her personality that removes the empathy that most people would feel.