He was a ‘mad drunk,’ ex says

The wife of the city subway rider who went off the rails during Thursday’s commute and ended up shot in the head told The Post on Friday she dumped him last year because he was becoming too “aggressive.”

Lisa Sweat, the estranged spouse of unhinged, armed straphanger Dajuan Robinson, 36, said her husband had been a construction worker who didn’t exhibit any mental issues when they were together — but that she had to give him the boot because he “changed.”

“He didn’t have any mental issues. We were good when we were good,’’ Sweat said from her Staten Island home.

Then “the last couple of months, he just got aggressive with me, and I let him go,’’ she said of Robinson — who Mayor Adams and top cops on Friday said was clearly exhibiting signs of mental illness during Thursday’s rampage.

Robinson was accused of pushing his wife and throwing something at their television in November 2022 when she failed to say hi, according to law-enforcement sources.

A month earlier, he allegedly cut the cords to the family’s appliances during a fit, sources said.

“That was at the end of our relationship — and yes, that was only when he was drinking,’’ Sweat said of domestic incidents between the pair. “Those couple of times was because of the drinking, and that was my last straw.

“He gets aggressive when he gets mad. It’s only when he’s drinking. That’s the only problem,’’ Sweat said, adding that the pair had no children.

“He might’ve been drinking’’ on Thursday, she said. “That’s the only thing I can think of that can make him like that.

“Last time we spoke, it wasn’t a bad conversation,’’ Sweat said.

“He was like, ‘I hope you alright,’ and that was it. That was like last year. It’s been a while since I’ve spoke to him.”