Obi wan is a a poor guy who falls for strong, fiery people like Satine and Cody.
Satine is his first love, his "first marriage". Satine, being strong and dutiful but at the same time a bit more romantic, unlocked emotionally repressed and anxious Obi wan.He never got over her death. He not only loved her, but respected her as a person a great deal. His love for her had the warmth and the passion of youth as well.
Cody, in my scenario, is his "second marriage". It's a long lasting relationship,unlike the first one, that matures with age and time. Cody may not be a sweet talker, flirty or gift giving, but he gives Obi wan exactly what he needs other than love: a loyal partner, who is also brother in arms, stability, practicality, a shoulder to cry on, patience ( keep in mind that Obi wan has been dealing with post traumatic stress disorder since the events on Mustafar ), loyalty ( even when he wrongs Obi wan, he always comes back ).
Obi wan would canonically give up the order for his first love Satine, prefer dying to finding out Anakin turned dark.
His lightsaber, his *life*. The" life" he thought of turning to the dark side when Satine died ( his vision of killing everyone involved in it ), the one which got literally buried along with Anakin's one ( their lightsabers ).
But with Cody, he could live. Cody first knew him as what Obi wan always has been: a Jedi. And he not only not wished him to be something else ( like Anakin often did ) but it was actually possible for them to be life partners ( unlike Satine who died ), exactly as they were.
For Obi wan is always forgiving ( Cody's betrayed him, not wholeheartedly but still ) and Cody is a practical man that can make a guy like Obi wan feel safe, calm and happy.
And Cody never doubts him. Only one day he felt low, when something happened and he got reminded that Obi wans love for Satine and Anakin ( different types of love actually) was unmatched. That night he wondered what it would be like if Obi wan loved him at least close enough. Till Obi wan came back and announced to him something like, he would stay at this said awful place permanently if needed because Cody had duties there.
Cody's heart warmed up enough to never ever question Obi wans love again.