Hi everyone! 2 quick questions I'd just like to get some opinions on

1. I live in a VERY small 3 bedroom house and BD has one room (which she shares with SD18 every other weekend) and DH and I have one room. Is it reasonable for SS11 to have an entire room for just himself every other weekend considering that I work from home and have nowhere in our tiny living room to work. I am literally confined to a side table beside the couch which is piled with disorganized paperwork. I have to twist funny to just use my computer which is mostly what I do for about 50+ hours a week. I would like to make SS11's room a "guest room/office" that I can use while he is not here. Is that awful of me?

2. SD18 still comes every other weekend and shares a tiny room with BD12. It's a very small room. BD uses a futon and when SD is here we blow up a twin size air mattress and it literally takes the rest of the room. There is NO walking space, lol! I hate this tiny house, but that's beside the point. The situation is that BD just got a new bed, it is a full size with a metal scrolling headboard and footboard. It's very her and she loves it! She has been through some very difficult times recently and getting something special like this has made her happier than I've seen her in months. Problem is there is no room now for SD18's air mattress. DH was fine with it until we put it together and realized we wouldn't be able to fit the air mattress in there anymore, now he's pretty angry about it (btw, I blame him for choosing this incredibly small house, I actually begged him not to take it but he did anyway behind my back... it's a huge point of contention for us...). So is it awful to put SD18 on the couch or make her share the room SS11 uses? She is going to college at the end of the summer anyway...

Thanks in advance for you opinions!