I know that 'menaj' means a boyfriend/girlfriend. So what are other words for 'menaj' and what are some words that are specifically for 'boyfriend' and 'girlfriend' respectively?

Mezanmi o!  Pitit, si pou m ta plen blòg sa a ak BON NON ak TI NON JWÈT  pou anmoure ak anmourèz, san konte sa'm pa janm tande,  pa ta gen espas rete ankò :)
Tcheke ak "link" sa a: endearing names

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words