He collects with the shop’s co-owner, Nancy Carlson, who lives upstairs. In a small shop on a funky strip of cafes, bars and galleries, he sells his paintings along with the vintage housewares that Neighborhood, in a house filled with midcentury furniture and quirky art by him and his friends. He lives in what real estate agents call a ‘‘transitional’’ Lean, tattooed and hunky in the way of a young Henry Rollins, Brian Reaume is living the life of a gay indie Brooklyn or Bay Area artist.