Just finished our first play date and it was a bit of a disaster. My son is 18 months, no older siblings. We invited my friend and her daughter round, she's a couple of moths younger than him. He spent the whole time being extremely territorial over his toys, trying to snatch toys back, crying/whinging and generally being unpleasant. I'm so embarrassed with his behaviour as he's normally quite a happy child although does have a temper at times. He was tired and went to bed part way through so that would explain some of it but how can I make it better for next time? Will it improve as I arrange more play dates? He's not at nursery yet but will start in September. The group we used to go to has stopped so the play dates and soft play are his main interactions with other kids. Please tell me this is normal and it will improve with increased interaction?