Kathlene rhymes with:
abilene, acetylene, acrolein, allene, aniline, arlene, carlene, darleen, darlene, dryclean, ellene, ethylene, evaleen, gasoline, magdalene, marlene, maybelline, mescaline, methylene, naphthalene, nutriclean, opaline, orlene, polyacetylene, polybutylene, polyethylene, polypropylene, sharlene, tourmaline, valvoline, vaseline