Things are getting serious between these two lovebirds. News that Lea Michele had jumped back into the dating scene first came about nearly a month ago, and it looks like her new relationship is blossoming quite well. A source tells E! News that the Glee star and her beau Matthew Paetz attended a private house party in the Hills yesterday, and the brunette beauty took the outing as an opportunity to introduce the new man in her life to some of her nearest and dearest.