>>82246428
if your boyfriend is asking to open the relationship, he's almost certainly either already cheating on you, or has another woman lined up that he's planning to sleep with, and just wants to make it official.
every single case i've seen where someone (man or woman) has asked for the relationship to open and the other person agrees, that person coincidently ends up fucking someone within literal days, and it's hilariously obvious they were already fucking beforehand. if your partner ever suggests this, make plans to dump their ass ASAP.