In my opinion ... YES.
If you are having a relationship with someone you know has a partner already then you are no better than the person who is cheating.
oh if your the single other woman having an affair with someone who is married?, I would say not only is it as bad, its also dillusional on the part of the single person.
Yep, that's what I mean,, if there's a single person having a relationship (of sorts) with someone who's already in a relationship... is it not worse to be the one in the relationship?
Personally I wouldn't like to be a bit on the side or his/her spare string. I know it is egotistical but I want to be the one and only and very important.
It's neither the person who is in a relationship nor the single person's fault - it takes two to tango, so many 'blame' the single woman/man. So yes, cheating WITH is just the same as ON.
If you know the person has a partner and choose to have the affair, then yes. However the other person may not disclose this to you and lie about their status, in which case how could you know, I guess.
At the end of the day, we cant help emotions, we cant help who we fall for or who we are attracted to, depends on how strong the individual is to not act on it....I know a handful of 'friends' that have cheated on their partner..the majority of cases it does all end in tears...although one girl I knew actually did leave her husband and is now married to this guy she was seeing while she was married.