Husband missed baby’s first birthday (to party) and I’m seriously thinking of divorcing him

(Background) My husband missed our baby daughters first birthday to break quarantine, go 200 miles away to party with his friends for the whole weekend and smoke weed! (I don’t/have never done any drugs so have no perspective on this). This is our second baby. First birthday for our first baby (son) he was in all the pictures because we had a big party and he loves the show. This time because our poor second baby had only us and sibling he headed off and left for the whole weekend. He hasn’t settled her once in a year- no joke. I do all night every night, 80-90% of general housework and parenting and I work full time in very demanding professional job. I’m very seriously thinking about divorcing him.. like I’ve contacted a lawyer.