[No One]

well i dont regret knowing such people.. mano chi mhem to regret it... usually we regret smthg we did... bas eno "ma3rife" i dont think eno we can regret it... once we feel eno hal "ma3rife" is hurting us in someway, so we can make distance from that person w there's no need to regret knowing him... ignoring others in such situations i think is the best solution