This paper investigate individual characteristic influencing the risk to engage a new relationship after a union disruption for Italians men. In particular, we analyze the transition from first union and the successive one, for both marriage and cohabitation. Among other characteristics we stress on the effect of son on repartnering possibility and territorial differences . Presence of son are mainly investigated in the analysis of women repartnering but we find that also for men children from previous unions induce a decrease on the risk to engage a new relationship. The decreasing effect on the risk estimates show a temporal dependency with stronger relationship for new union beginning more than two year after first disruption. Our tested hypothesis is that temporal dynamics depend on the way man could be considered the “principal actor” in taking the decision of interrupt first union or suffer this decision.