Normal bingeing or alcoholic

My boyfriend and I are TTC but I’m starting to get worried about his drinking and sperm quality.

He doesn’t drink that often, but when he does it is often 4-5 glasses and then he does this a couple times a week for a few weeks before taking a step back. If we argue and he has been drinking, he’s extra annoying and not reasonable. Or he just goes to work in the garage on a woodworking project and I’m afraid he will hurt himself with the power tools. He went without drinking for 2 months after our trip to Vegas this fall. sometimes he can drink just 2-3 drinks a night a few times a week.

Since July, I’ve counted 13 times he drank too much and was a jerk or something bad happened. Once he peed on the floor of an air BNB, once he lost his phone and passed out in a car wash and agreed to go via ambulance to a hospital when someone found him. Twice when we were visiting family in other cities, he went out drinking by himself and came back at 3 am. (One of these was the airBNB).

He started drinking again on Super Bowl Sunday and has had 3 days of heavy ( 5 or more ) drinking. One of the times he was super hungover all the next day.

He has no problem when he goes without it for months—no withdrawal—but he sure as heck doesn’t act cool when he drinks. How am I supposed to co-parent with him when he’s bingeing?

What is this?

He says he’s fine because he can stop when ever he wants and his friends all drink more, and that I’m just being controlling and judgey because I don’t drink much. (I can only have vodka or beer/cider becuase of migraines, only have 1-2 at a time, maybe once a month except every day in Vegas, and uh, not drinking now because TTC).