Hi everyone. I just want to as whats the difference between using former or ex as in ex-roomate,former-roomate or ex-girlfriend,former-girlfriend. I cannot seem to differenciate this two. Thanks.
By the way, please don't hesitate to correct my grammar. I try to write in proper english as proper as possible.
Well, it seems to me; no difference in meaning. But 'former' seems more formal. We don't ahve 'ex-student' but we often hear 'former-student'.
Hmm...a bit hard to ellaborate.

Please give us some problematic words of the word 'ex & former'. We'll solve them together.