Ben Affleck angrily chews out paparazzi as they flirt with him leaving J Lo House

Ben Affleck he lost his temper with the paparazzi this weekend — but for good reason … they were taking the crap out of him with their cameras, which he correctly noted was dangerous.

The actor was seen leaving his and Jenifer LopezHis marital home in Bev Hills on Sunday night — where a group of photographers awaited him at the bottom of a hill as he made his way out alone … and once they saw his car coming down the driveway, they sped away.

You can see a bunch of white flashes as Ben tries to make it safely back to the main road, but he comes to a screeching halt … and then exits the vehicle to speak his mind.

Watch… Ben specifically says this about a grandpa who was right where he first came out, and scolds him for basically blinding him while driving… which he points out can lead to him losing control and possibly even to be injured.

Ben gets in the guy’s face and tells him not to — it looks like the dude is trying to defend himself and/or explain his actions, but B.A.

However, before he gets back in his car…he speaks to the other grandparents on hand, reiterating his point that this whole thing is dangerous — and also telling them that his daughter is also headed up the hill, and that “I’m going to put her in danger if they shoot with their cameras.

The grandparents say they see what he means, and seem to have heeded his warning… this is before Ben storms out, looking frustrated and irritated — understandably so.

BTW, even though it was in the marital home — J Lo wasn’t there … she ended up in Paris — this after spending a good time in Italy last week, where he was with friends.

As we told you… Ben and Jen are living apart right now — he has a rental in Brentwood, and while Jen has he was coming and going from his place during family events … it doesn’t look like the night has ever passed.

Of course, we also know that it is trying to sell quietly Their huge fortune … just a year after being snapped up for $60 million. We hear they are trying unload the property for $65 million.