What would you do? and what do you think?

It possible they knew there would be to many there and would find it a bit over powering...so they might have felt of all the children , their son was the one that would not make a big fuss if asked not to call that evening. Maybe all the rest of the family are a bit argumentative and they where not up to a big argument. Don't be to quick to thing the worst...next time you are with them and things are calm , then ask if everything is ok with them...then mention the night you were not invited around... but don't do this if you are angry, or looking to find the negative in all of this...there could be a very simply explanation.

It does sound a bit strange. Perhaps they wanted some time to themselves and didn't expect all the other family members to turn up - perhaps they arrived unannounced. If this is the case then they should be honest with you rather than making what seems like excuses.

If they cancel your visit again maybe you could jokingly make a comment like "You've not fallen out with us have you? I wouldn't want to develop a complex!"

am thinkin theres obviously something goin on there.. maybe there's something wrong between him and his sisters, why else would she ask u not to come when the others were there.. u should talk to ur boyfriend about this..as i know a few women that tell me their boyfriends dont tell them anything that goes on in their familys

well maybe they had enough company in their home, but they should be more honest with you and not have to make any excuses, who really knows why people do these things.