Amor y Amargo popped up a few months ago, just steps from Tompkins Square Park, to become one of the more interesting little bars in New York, specializing in homemade vermouth on tap, bitters and other herbal liqueurs, and a few Spanish tapas. I tried the vermouth (perfect, not too sweet), the francophile flight (it turns out that sampling a good green chartreuse is a must on the bucket list), and a bracing amaro, the inebriating effects of which were kept in check by a tapa of crispy garbanzos and morcilla. Beyond all that, of course, is the rueful poetry of the bar’s appellation, which translates as “Love and Bitters.”