He is just 9 months and I have just gone back to work. They are looking after him which is wonderful and so helpful to us, so I feel mean even writing this. But today, I phoned up (as usual) to check on DS and no one was in. Tried again later, still no one. Thinking this was odd as it was past his lucnhtime by now, but still no answer. Got home to find they had just got back from lovely day out. DS had lovely time, but I just felt awful that they hadn't told me - I didn't even wnat them to ask, just say "we are going on a day out etc" would have been ok. Thye have his car seat so I knew they'd ahve days out, but this is the first time. He hasn't been anywhere without me (ever) apart from their house. Rational part of me says get over it, they are doing you a big favour looking after him, but non rational part is upset. AIBU???