My friend, A has the same problem. A is attached with B, for 5 years and they met C who is attached with D. At that time C & D had some relationship issues and C needed to have a listening ear so C confides with A. A eventually won C over, but C still loves D. Therefore to work things out. A suggests to C that they, ABCD has a 4 way relationship. Meaning A & B are still couple and C & D are couple. Because they like each other, and because they can't give up their partner, it's best the 2 couple come together as 2 couples. So far it worked rather well and the four have been together for the past 1 year and they have sex as a foursome, although A & C do meet up for sex at least once a week by themselves with their lover's knowledge and consent. A still lives with B and C still lives with D but the 2 couple live a distant from each other. So A and C don't meet very often, but they do make a point to go out in a group over weekends and holidays and occasional dinner. It amazes me how they are able to work things out. My friend A is the one that has the EQ to manage all the other 3 well and resolves most issues with very fair treatment for all of them. So yes. It is possible to love 2 ppl at the same time.