Lyric discussion by IamPrefomer 

Cover art for Cape Town lyrics by Young Veins, The

Cape Town is a metaphor for fame/hollywood/ect. He's saying he loved Keltie, but got "lost" or caught up in the idea of fame and that lead to him cheating.

"Woke me in the morning Asked me if I meant it (I didn't)"

refers to the morning she found out and he told her that the other girl meant nothing to him.

Cape Town is a city in Western Cape, South Africa...