This series has only a few episodes left, and Lena Dunham, both behind the scenes and in front of the camera, has saved her best for last. This season has been the best yet for Girls, and with Hannah recently learning of her pregnancy, these last few installments are likely to have even more importance, drama and resonance. Tonight, Hannah revisits the surfing instructor (Riz Ahmed) who is the father of her future child – if she has the child, which many of her friends are surprised she’s considering, especially if she proceeds as a single mother.