Been with dh for 15 years, since teens. I used to have a great relationship with pils, really felt like a member of the family and loved how different they were from mine. They are happy, relaxed, chatty, laugh lots. Since having dc1 5 years ago however, I have cooled towards them so much and 2 DCs later the relationship has still not recovered.
I find them so overwhelming and I am intensely irritated by them. They are textbook ideal GPS/pils. Will drop everything to help, if I phoned to say I've run out of milk, could you grab me a pint and drop it round, they would, no matter what! It's just so suffocating, feeling so responsible for thier happiness. They have few friends/interests though are very happy together.
They adore me, dh and DCs, and just seem to. E waiting to be asked to be involved at any opportunity. They twitter around me, which makes me more growly and them more twittery! They see the DCs twice weekly, once when they take them out for hours (they want to do this but of course it's lovely for me too). They're always, always offering to help with anything and everything and I almost never accept as I know I know I find them hard a d can't justify my sullen behaviour if I am also accepting favours (not that it's justifiable anyway).
This means, when I'm desperate (e.g. everyone's ill) and I ask for, say, some supplies, they'll both turn up with bags of shopping several hours later, very excited and offering to Hoover, do washing etc.
I feel awful but I just want to scream " NO! That'll do thanks!" I'm not asking for opinions on my feelings, I feel awful and they don't deserve such an irritable, grumpy dil. Just after opinions on why I might feel like this. I'd describe it as overwhelmed mostly.
If it makes for easier reading, they're pretty thick-skinned and barely notice 