Not originally he didn't. Marcel hasn't actually had a change, to my knowledge, but originally everyone speculated that he was going to be more of a gentle giant type character. The way he teased Holly was much different than how EK had portrayed black men in the past, that while most of us thought he'd still be BBC, he was at least going to be BBC in an interesting manner. And then "I hear you like dark meat" happened in the back alley with Lena.Feels like Marcel on the other hand only exists for the kink, it was kind of interesting for him to be into Holly but then the first scene is with him and Lena so it just became tired and boring.
So now Marcel only exists for the kink. For the sack of interest I hope he at least continues to treat Holly with that same degree of light teasing that he does in the earlier chapters. Let Holly's corruption at the hands of Ivy and a Slutty Lena be the guiding factor if there ends up being something between her and Marcel, and not him just dropping his pants.