While dwelling on a recent breakup may be good for some, it is always better to leave an ounce of love for yourself.
One type that falls into this category is your friend's ex-boyfriend.
There may be certain circumstances that would allow for that romantic interest to bloom, but there are also many reasons why it's not such a good idea.
Even Wendy admitted that it was just a casual, two-week thing. If he'd been a serious boyfriend, I would have thought twice." If you believe your infatuation with your friend's ex is really more than just a crush, it may be OK to proceed with caution.
Communication is always important, though, and letting her know your feelings, intentions and respect for her wishes is crucial prior to starting a new relationship with her ex.
We all come to a certain point in our lives where we get to finally laugh about our previous heartbreaks.