I'm wondering if your post was just on a bad day and this is a rant. I've had moments like this where I feel really nasty. Usually behind anger is real pain, hurt and fear - maybe you're frustrated with past relationships and worried about the future. Like Nucking Futz said -carrying around this anger isn't healthy for you. You don't have to care about their happiness but don't let it bother you. Actually relationships are hard work and highly over rated lol.