Short version. Looked after SIL's 3 children last week for the whole afternoon - not a problem, they're delightful and love spending time with them! Later in the evening I sent her a text just to say we'd had fun etc, short and to the point. She didn't reply to ask how they had been, never said thanks or any contact at all. Is this strange to you? I think it's bloody rude. Puts me off helping out again.
AIBU?