Can a woman love two men at the same time?

Hi,I consider myself a normal man,my wife and I have a good marriage,my wife has a lover and it has never been a secret between us, on the contrary, I have known all the time and I get excited and when she is with him I always know.
I would have liked to be present when they are together because I find it very exciting to watch your wife being fucked by another man but this guy in particular doesn´t like it and I respect it.My wife has filmed their encounters a couple of times and sometimes left her cell phone on when they are fucking and believe me it has been really exciting hearing them and masturbating.
She tells me she likes him very much but I think that she loves him also.
She always makes a detail account of her encounters with him when she returns and we are in bed and that makes us have intense sex.
She tells me that he is very passionate when they make love, I know he is very intense because I have watched him on film without him knowing that he was being filmed,she tells me that she receives a lot of pleasure from him and she tells me that she likes him a lot because it just isn´t sex,when they arrive at the hotel room, he listens to her while she talks about her,they talk about how my wife is and how she feels and she tells me he makes her feel important.etc.
I feel strong about my relationship with my wife and get really excited because all of this. I even showed her some serious papers published by serious expert people that say :
80% af men would love their wife fucked by another man or men.
Many good relationships become stronger if everything is open and the couple talks all the time about the experience.
It is possible for a woman to love two men at the same time and make love equally good in emotional terms to both of them.
Thanks and I would really apreciate thoughts,experiences,answers,advice,comments,etc.