In the 5th Wave it says “And then Evan Walker kisses me.” Evan walker was human as a unborn child when he was born a sleeping alien was implanted.When the mothership came the alien woke up and killed Evan Walker's sole. So the she loves the species that's trying to eradicate her. In the book The Host it said “Eight full lives and I never found anyone I would stay on a planet for, anyone I would follow when they left. I never found a partner. Why now? Why you? You're not of my species. How can you be my partner?” This is when Wanda is talking to Ian about how she loves