It has been quite a while since Toni Braxton, the pixie R&B diva, has done anything that really impressed us. “Unbreak My Heart” was our jam. We even enjoyed “Hit The Freeway,” because it let us pretend to be more bold than we are. But what was that record Libra all about? Yuck. So along comes “Make My Heart,” off her new album Pulse, which comes out in May. And while we aren’t wowed, and are very, very interested.