I mean, you know he's a sloppy alky right? He's just a manky (presumably) young drunk who will, in time become a manky old drunk.
And you'll be like my mother was, tolerating him sitting there slurping, sloppy loud and a painful twat. I won't talk about his violent temper only ever seen when drinking, but that's par for the course with drunks too. Or all the mornings ruined by his hangovers as well.
And he will get worse and worse over the years. Over time your bedroom and bed will stink of his filthy alky sweat. I remember changing her sheets for her when they were in their 60s, she never drank but the whole room smelled disgusting like an old pub.
Imagine what all the money he is guzzling and pissing out could be spent on for your children. Count up how much of your children's money he guzzles down.
Every one of our little holidays that she saved so hard for, little getaways for a few days a year in a caravan as that was all she could afford, was at least partially ruined by the sloppy drunk.
Just like your children's holiday is being at least partially ruined.
And they will remember, of course. Not just that he was choosing to be a disgusting loud mouthed selfish alky, but that their mother put up with it on their behalf.
Oh, and at least one of your children will become an alcoholic too. Guaranteed.
You are normalising outrageous, anti social, filthy, selfish behaviour.
Get him the fuck away from your children.