My DP and I have an almost 8 week old baby. His dad came to stay for 2 nights over the weekend and DP then wanted to spend some time just with his dad so wanted to go away Sunday afternoon overnight. Our baby still does not sleep so usually he does a few hours in the evening so I can sleep. As he was going away for the night, he arranged for his sister to come and stay with me (she is just lovely) which was fine with me. My DP is a very heavy drinker so expected not to hear from him Sunday evening/night as this is normal when he is out drinking a lot but I then also didn't hear anything from him all day on Monday either. His sister asked him what time he would be home and said he would be 20/30 minutes at 6 but didn't come back until 8.30 Monday evening and had been very clearly drinking the whole day. AIBU to be upset that he didn't contact me at all to check in with me and our baby even just once? I just would also like to add that as he has come home really pissed, there is no way I can let him take care of our baby whilst I get some sleep this evening. I feel like he prioritises alcohol before our family. Most of our arguments have been about his drinking. Am happy to be told I'm overreacting!