According to the zip.vim plugin docs:
Apparently there are a number of archivers who generate zip files that don't use the .zip extension (.jar, .xpi, etc). To handle such files, place a line in your <.vimrc> file:
au BufReadCmd *.jar,*.xpi call zip#Browse(expand("<amatch>"))
Therefore, add this to your vimrc:
au BufReadCmd *.love call zip#Browse(expand("<amatch>"))