"This is a tale of woe, this is a tale of sorrow. A love denied, a love restored to live beyond tomorrow. Lest we think sadness is the place to hide a heavy heart; remember, to love and to be loved is life itself, without which we are nought." (The Frozen Deep - Dickens)
Trust me, I want a meaningful/lasting relationship and another shot at "love" - whatever that means. I just hate to see people blinded by the very nature of it. A close friend of mine recently consummated his relationship, and has since expressed to me the "love" he has for his new partner (who's work-visa expires in a few months). This isn't the first time he's been in a situation similar to this, either. I'm happy to see him happy, but I also know that his brain is currently flooded with oxytocin, serotonin, and dopamine - resulting in behavior that isn't necessarily rational.
I guess we live and learn, but it certainly is hard to "let someone in" when you have seen others around you be tarnished by letting their guard down too soon.
"It's a basic truth of the human condition that everybody lies. The only variable is about what." (House M.D.)