Would you tell your son’s mother this info?

I am a step mom to a wonderful 14 year old boy. My son’s mother and I are good friends and hang out often.

My husband has been battling alcoholism but isn’t seeking any help at this time. It’s causing marital tension.

Well his luck finally ran out. This morning he was driving drunk, got in an accident (drove into a ditch) and is currently at the police station.

Is this something I tell my son’s mother about? My husband won’t. My husband doesn’t see his drinking as an issue. But it’s her son’s father? I’m not trying to be a tattle tale or stir the pot, but I feel she should know

What do you guys think? Tell her? Or let my husband keep it a secret?