from what I saw Bulaut only said one suggestive line to Tatsumi when they first met and never harrassed him after that, though I've only seen the dub
and the dub did a lot to cover up Tatsumi's lines calling Bulaut a Rapist (namely they got rid of them entirely)
also Bulaut isn't the greatest representation of a Gay person I'll admit that, but compared to characters like Puri Puri Prisoner it at least seems like the writers were actually trying to make a positive gay character since he's not drawn hideously and paranoia about rape or not Tatsumi actually liked and respected him as a person