I hate how jealous I am

I've never really been one to have many friends. And the ones I did have stopped talking to me when I stopped partying. Now my husband and I have a 1 month old. He gets to go smoke weed legally for the first time tomorrow with some friends and they're gonna go hiking and everything else. But I'm breast feeding so I can't smoke, and someone has to stay with the baby. And I'm so glad he gets to go have a guys day, but at the same time I'm so jealous. :/