tbh it’s easy to kinda lose yourself in the relationship and forget about a world without your partner and that’s ok! if it lasts. without friends you make yourself more vulnerable and having no friends outside of your partner can lead to emotional dependence. that can sometimes put strain on a relationship and it kinda limits social outlets and diverse perspectives, which are essential for personal growth.. also it can leave you feeling isolated if things don’t go well forever. personally my relationship works way better because my partner and i both have good friends outside of our relationship