Brian Batt Not Coming Back to Mad Men

Openly gay actor Brian Batt will not be coming back to Mad Men because his character, Salvatore, was discovered to be gay (or, more accurately, because he wouldn't put out for the Lucky Strike guy).  According to the article, Batt apparently hasn't gotten the final word yet.  What a shame.  I'm sure this reflects the reality of being gay in 1960s America, but a writing team that creative could have come up with something.  I believe the viewers at least deserve to find out what happened to Salvatore instead of leaving us hanging with that last scene of him talking on a pay phone by a cruising park.