Will it create a problem with your relationship if your boyfriend wants to be friends with his ex-lover?
There is no reason this person cannot find other friends, dont
fool yourself you will always be "wondering". So be truthful with
yourself and your lover. I believe that in the future after a term
of absence, there is a friendly relationship that can take place,
but not friends. No Way. It's you or constant worring and
wondering, so just nip it in the bud now!!!