I think that heīs going to be the same as he was before the divorce.Sean Mcnamara has the incredible ability to make things in a very odd way, like in the third season that he was single and was almost killed in a few times LOL But I think it could be a good storyline to make him jealous of Michelle, and explore his "gay way" too hehehe
Thinking it seriously, maybe he will be involved with Escobarīs themes until the end of the season.

Kisses

Ana