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nesting (ˈnɛstɪŋ) — n

the tendency to arrange one's immediate surroundings, to create a place where one feels secure, comfortable, or in control (World English Dictionary, Collins)

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empty nesting (ɛmptɪ nɛstɪŋ) — n

the tendency to arrange one's immediate surroundings, to create a place where one feels secure, comfortable, or in control (Lisa)

I think it’s time to paint. A lot.