need some advice really

i just broke up my girl friend we are still friend its a little hard for both of us but we dont want to effect our friends we have been apart for a 2 weeks know and she has kissed one of my friend he said it just happen and i askedher she said she feels a little for him but doesnt know yet just to see where it go's. he has just finish out of a 3 year relationship and me and her were together for 2 half years both arent looking for anything any time soon but hard for me know that they doing thing and might get together so soon nee a lttle advice on what you should think i should do.

Talk to your friend. Before getting with your ex its considered polite to Ask you first. If your not comfortable with them doing stuff together , as a friend he should probably back away from her to save you the pain tbh :P