(kind of long sorry) Does anyone else have a fiance that treats their sister better? A little background .. My fiance and his sister grew up with their dad (mom got sent back to Portugal when he was 12) they're also considered "Irish twins" anyways I never had a problem with her till I got pregnant. I don't know if its just jealousy or my raging hormones but I'm honestly starting to consider leaving him over it. I feel like he baby's her too much like she's helpless and she knows he'll do it. Another thing is she volunteered her self to host my baby shower etc and even though my grandparents were planning on doing it I let them know she'd mainly be doing it but of course they could help out etc. So I gave them her number and when they tried contacting her she was always too busy to discuss plans. She then started saying well they should just have their baby shower in February (I'm due in Jan) she told my mom "They can manage till then" so weeks go by and my family keeps asking about the date and location and needless to say nothing ever gets officially planned by her. so one week before the 7th (that's when I planned on having the baby shower) my family pulls a miracle and starts preparing. They pay for this gorgeous cake and cupcakes, they bake all these cookies and pay for the food to be catered and even get all artsy crafty and decorate everything. while this is all happening they try one last time to reach out to the sister to see if she wanted to pitch in for some of the stuff or make a dish or something and she said she'd make a couple things but never replied saying what. So she showed up with fruit mixed in a big bowl (better than nothing I guess) but if it wasn't for my family I probably wouldn't have had anything.

& now as I write this she is spending the night in my living room (we have a 1bedroom apartment) with her boyfriend. Even though I voiced to my fiance I'm 37 weeks and I'm constantly getting up in the night to eat , pee, or just walk around. plus I get hot flashes so I do that all half naked. Its not like she doesn't have her own room at her grandparents to stay at either because if she didn't have a place of course I wouldnt have a problem but she does. His reply was "I cant tell her no" we don't even have our couches yet either so they're sleeping on the floor but when my cousin wanted to stay the night at our old house that was much bigger (it was a 3 bedroom & we had a roommate but an extra room plus a big living room) he said it wasn't a good idea because he had work in the morning so I respected his feelings and told her no. I can't ever tell him anything about his sister because he gets mad & she can do no wrong but he has no problem saying stuff about mg family. am I overreacting? what should I do?