I could and would see it that way, if Myrtle looked at it that way or started to look at it like that. At one point I thought she would become angry at Jack for leaving her alone unprepared. And I would have been perfectly fine with that, Myrtle realizes Jack hasn't been such a good husband even besides the sexual things and willingly breaks her promise. But the way it was done, Myrtle still verbally and technically upholding the promise and on her way to a dangerous resuce mission, just irks me. Let's be real, I'm just salty I can't enjoy her content, but if that's only me, I haven't really got a case, have I?
Edit: After thinking about it, my problem isn't Jack, my problem is the undecidedness of Myrtle. At that point she should either finally forget about Jack or uphold her promise until the rescue mission fails or succeeds. What she does feels wrong to both parties, she gives MC the feeling that she's still in love and loyal to her husband but at the same time not really loyal. Apparently my dick finds that very unsexy for whatever reason. Stupid dick!