Complex sentence: He is able to survive by secretly using a new micro-technology to heal himself and, after realizing that Felicity is indeed in love with Oliver, the two have a civil break-up and decide to resume being friends.
Split into simpler sentences: He is able to survive by secretly using a new micro-technology to heal himself. Ray later realizes that Felicity is indeed in love with Oliver, and the pair have a civil break-up and decide to resume being friends.