"No, this, she felt, was real life and if she wasn’t as curio..." — David Nicholls quote meaning

No, this, she felt, was real life and if she wasn’t as curious or passionate as she had once been, that was only to be expected. It would be inappropriate, undignified, at thirty-eight, to conduct friendships or love affairs with the ardour and intensity of a twenty-two-year-old. Falling in love like that? Writing poetry, crying at pop songs? Dragging people into photo-booths, taking a whole day to make a compilation tape, asking people if they wanted to share your bed, just for company? If you quoted Bob Dylan or T.S. Eliot or, God forbid, Brecht at someone these days they would smile politely and step quietly backwards, and who would blame them? Ridiculous, at thirty-eight, to expect a song or book or film to change your life. No, everything had evened out and settled down and life was lived against a general background hum of comfort, satisfaction and familiarity. There would be no more of these nerve-jangling highs and lows. The friends they had now would be the friends they had in five, ten, twenty years’ time. They expected to get neither dramatically richer or poorer; they expected to stay healthy for a little while yet. Caught in the middle; middle class, middle-aged; happy in that they were not overly happy.