In my opinion no. Although I never dated, but if I dated different guys I would never be friends with my exes cause it would bring back the memories I shared with that person, and it would feel like being friends with an ex wouldn't be good for me to go through in my life, but rather to move on and forget about it. Like I said, I never dated but if I was in that situation, then no I wouldn't allow that. But I'm glad I'm single, for a long time waiting for the right one.