Deny Me, The Nightshade Boy: Book One in The Heartwood Trilogy

Andrew has been haunted by the Folk ever since his mother's addiction to Fae-spelled foods. It was never his intention to fall for Micah, whose mysterious nature suggests more than just human lineage, but Micah has a certain... charm to him that Andrew finds irresistible. While their ensuing romance seems to be going well, the Folk from Micah's past demand his attention, and demand that Micah stop denying his Fae nature to harness the power in his blood.