Bella Hadid and The Weeknd started out by being subtle about the fact they were hanging out together and dating again on Instagram. But The Weeknd is done with that: He is eccentric proud boyfriend now, as of midnight. The singer celebrated Hadid's 22nd birthday the exact minute it started with a gallery of coupley photos of them. There are a lot of kissing shots in it, from the first slide's video to seven additional photos of cheek kisses, full-on lip kisses, and almost kisses. Every kind…