Ringoo,
Of course it is possible in theory, but it depends on you and your heart and mind, as well as them and their heart and mind. With it being such a short time since the romance ended, there may be some confusion that arises. If you can just accept that it may or may not be there, you’ll be less likely to get swept into the “what ifs” and “if onlys” etc. Good luck, I hope the coffee and company are pleasant.
With warmth,
Matt