Nothing to do with being buthurt, but when someone behaves like a clown, name-calling is the way to go. Of course I wasn`t making any judgements about particular people you know, you have all sorts of people, and all sorts of cases. Now, the tendency (i.e. general cases), and you have many articles about this (also I don´t have any view based on forums for obvious reasons), if you are in a relationship with a girl who slept with lots of guys, and had lots of flings, it shows in the first place a volatile mind, an unstable woman. Either she can´t commit at all, or when she does she quickly becomes fascinated with someone new. Also, and while you have saints (repressed sluts), that after a celibacy period go wild, people´s nature tends to remain the same, if she needed variety in her early twenties she will likely remaining the same and get bored quickly. In addition people with more options tend to cheat more ( a big part of cheating is with ex´s, so logic says that the more ex´s - from flings, ltrs or ons - you have the bigger the likelihood of cheating, ex´s are easy options). So if you happen to be with a girl with a lot of past, and lot of bad experiences behind, chances are that she is still easily picked up by new guys because she is easy. She might really love a new guy, but for how long. Also the more people you are with the less you will value future people, it´s not a matter of insecurity, that´s why women become colder and colder with age, you just see new people with suspicion because of bad experiences. That´s for instance the reason children make friends easier..
Now, I don´t want this to become very abstract to you, so I´ll pick you as an example. As a gay man imagine you had been in long term relationships with a few guys, Marcos, Peter, John, Javier, Paulo, Ruy and Carlos. Marcos is your first boyfriend and takes your anal virginity, he will be in your head and butt for all life, now during your course you will say to Peter, John till Carlos, that you love them all and they are the man of your life... Of course your words must lose some credibility, and your bad experiences will accumulate, and you will tolerate much less from Carlos than others.. Also Carlos with have to deal with all your ex´s hitting on you, flings etc... waiting for a worse moment in your relationship that will come (poor carlos).
There is lots of research on promiscuity, and yes many of these people marry, and in part that´s why marriage became almost devoid of meaning.
