SIL goes out once or twice a month with girls from work. Since having kids, BIL does not drink much at all and hence can't hold his drink so does not bother with drink.
SIL has gone out tonight, leaving him alone with the kids in bed, but she has gone to daughters's friend's mum's for the evening to see the new year in.
Recently, when MIL stayed over at theirs for a night while visiting from Spain (where PIL have retired to) SIL made BIL get up to the kids all thru the night as necessary, despite him working gruelling shifts. (SIL works too in the day, never at night)
He called us earlier on asking if we would like to go over to his with him but we said we couldn't as kids were in bed and DH has had a couple of cans already.
DH said he sounds quite depressed and fed up.
He is really concerned for his bro but BIL is not really one to show any emotion and always put a brave face on.
Just wanted to offload really as we don't think she treats him fairly. Don't get me wrong, I really like her, but we feel she does not treat him well.
Are we wrong or is this pretty normal?