Bit of background so as not to drip feed and name change in case outing. MIL and FIL have been overbearing since the birth of DS. For example when DS was newborn we received a phone call from MIL on the Saturday night asking to see us the next day and when we said we were busy there were tears and told 'well I just hope he knows us then'. Not what we needed at that point in time as we were exhausted and dealing with a refluxy baby that never slept.
So to last Friday. In-laws were doing their last pick-up at nursery before DS starts school in August and have been talking about how emotional they are about. I've been playing it down as DS doesn't need to deal with an adult's emotions about it. He's been fine but this weekend starting showing signs of nerves and worry rather than the previous excitement. Then, when I picked him up today his lovely key worker was chatting about how emotional my in-laws had been on Friday while DS was there and how they had given her flowers and a card with a lovely message. She was so thankful about it and all I could say was 'wow, how lovely' as I was shocked that they would take it upon themselves to do that and not say anything.
They obviously know that DH and I wouldn't want them to do that as they haven't mentioned the gift to us. DH is on the same page as me, thinking that it oversteps boundaries, it's not their place to be thanking the nursery and even my Grandmother-IL has told my MIL to not be so emotional as our DS is not her DS.
I'm genuinely interested in people's opinions on this as I would like to get into a good place about it but feel very uncomfortable. They are also good people but drive us batty with their lack of boundaries.