The cabin bed, a cradle for the imagination

Okay guys I need to know if I'm in the wrong. So I live with my son's dad we are not together but we sleep together and all that SMH He Gets to drink an hang out with his friend all the time. Well he's planning a cabin trip with his friends and I told him I wanted to go because I'm about to have this baby in 3 months. Plus they're talking about putting me on bed rest because i can't control my blood pressure. His reaction was crazy. He said I don't know why you have to go if you want to get a cabin you can do that by yourself or we can do it another time by ourselves or if you want to hang out with my friends we can do that another time. Am I wrong for thinking he is so unfair or is he wrong for knowing it's unfair but not caring? He just keeps saying that he just wants to be with his friends and that he guesses he's a piece of s*** for that. But the way I see it he always gets to be with just his friends why is it so hard that we could save money by just me going with him on that trip instead of making two trips. # #