He certainly tried to de-escalate the situation. Tried to difuse it. What happens? DoucheBro calls it a bluf. Then Elspeth starts running her mouth. I call it intimidation, you call it provocation. And normally I'd be fuming if a woman provokes a fight which she won't be participating, Elspeth actually participates it. So I don't see any reason to hate it. Besides, Valentine neutralize the first DoucheBro without anyone being hurt. Elspeth takes a punch, then makes sure DoucheBro-2 regrets that punch. So in reality the only real fight there was between Els and DoucheBro-2.Dude! Valentine gave them an escape route, with his mouth he told them he didn't want to fight them and with the rest of his body that they didn't scare him in the slightest. In this situation they could easily say he was a coward and run away while saving face. Elspeth screws everything up, after her arrival they can only fight or be thought of as cowards
And potentially Valentine as a professional fighter could get into trouble
I don't think Els coming into scene made it worse. Think about it a second: Valentine comes in between the girls and douchebros. Tells the girls to go away. The girls will of course take his words into heart and bugger off. Both douchebros will try to go after them. Now Valentine can't just neutralize both of them with locks. So he has to swing at least a punch that's powerful enough to make him pass out. And we found out how powerful his punch is, in Ep.7. Can you adjust your punching power so perfectly that you can decide if your opponent will pass out of pass on? I certainly can't. Then go on to neutralize the second one. Elspeth being by his side actually takes away the necessity of punching. He just locks the DoucheBro-1 and lets Els handle the DoucheBro-2.
So Els actually saved Valentine some legal bullshit by just being there.