We've had dss to stay with us for the first time since I've fallen pregnant. He's 7 and currently dh and his ex have been trying really hard to get along, but she easily gets wound up and frustrated. Anyway, since we picked him up Sunday, he's been very cold towards me and isnt as cuddly and chatty as normal. He's fine with his dad and grandparents but not me 
what should I do if anything to try and make him feel reassured. We've done the whole 'we will still love you the same, there's always room in our house for you etc...'