is tired at being back at zero..advice?

Once again ive opened my life and heart up to someone I really cared about. Everything was going fine until I showed a little bit of emotional weakeness and then she let me go. I have prided myself on being an amazing partner to who ever I am with but once I get emotionally involved and let my guard down, it always ends up in a bad way. The last two have been the worst, I was engaged and it was ended and the last one we were having a baby and she miscarried. Why is it just when I see things going long term, I get crushed and why do women not like an man who has emotions? Advice?

May be the women quit you were not considerate enough. Sometimes temporary failures in relationships result in finding the ultimate soul mate. Although life is not a fairytale and sometimes you end up chasing a fairy's tail ;-), but still hoping for good to happen helps pass the journey in a better way.
Emotions are okay, but may be women expect sometimes "boys don't cry" stuff. So motions are good, expressing them is also good but holding them till the right moment is the key! Empathise more and plan things, control the emotions and let not the emotions control you!

Regards
ZILCH HOUR