Good, dont a get puppy now. Leave for later when your life will be more settled.
Regarding parties etc, I had made a deal with H that if something was up with my side of family and friends on his weekends, we would switch or I would get the kids for a cuopleof hours or more.
Things are still unclear now, once you get a stabile schedule you can work toegther with S's best interest in mind. You just have to hve time alone for you my dear, dont neglect that. Hugs K