Ay nanay, nakikita ko talaga kung gaano ka-frustrated, ito hindi tungkol sa pagiging makasarili, ito tungkol sa pakiramdam mong hindi ka priority sa sariling pamilya mo, lalo na when you're doing SO much with three kids palang. I think kailangan mo i-have a calm, serious conversation with your hubby, hindi pang-away, kung saan ipapaalam mo na ang concern mo ay hindi ang sister niya, kundi na pakiramdam mo na ikaw at ang mga kids ay laging nag-aadapt while his family gets the "yes" automatically, at it's making you feel unsupported. A few of my mum friends na dumaan sa same thing said na kailangan nila talaga i-spell out for their husbands na "if it's between me needing a ride with three kids or your sister, I need to know I come first to you", sometimes they just don't see it until we say it clearly, hindi judgmental lang. Siguro rin pwede ninyong i-agree na may family time na "just us" talaga, and dadalhin ninyong family decisions together muna bago mag-invite ng iba, para parang may decision-making power ka din.