Caylee Cowan Raves About Love for Boyfriend Casey Affleck

At the premiere of Spinning Gold in Los Angeles on Wednesday, actress Caylee Cowan opened up to PEOPLE about her romance with boyfriend Casey Affleck, calling him "everything."

Casey Affleck, 46, and girlfriend Caylee Cowan, 23, passionately

Casey Affleck's Manchester by the Sea feels like the big one for

Casey Affleck's, 47, girlfriend Caylee Cowan, 24, attends star

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Casey Affleck Makes Romance with Caylee Cowan Instagram Official

Casey Affleck & Girlfriend Caylee Cowan Romentic Date Night at Los

Casey Affleck, 47, and girlfriend Caylee Cowan, 24, have

Casey Affleck, 46, and girlfriend Caylee Cowan, 23, attend Dave

Casey Affleck, 47, cozies up to glamorous girlfriend Caylee Cowan

Casey Affleck, 46, supports stunning girlfriend Caylee Cowan, 24

Caylee Cowan with boyfriend Casey Affleck