Well, thanks, OS. Honestly, I didn't expect to receive any encouragement because I know most people would disagree. fwiw - in this particular instance, it is not because the woman got pregnant. It is because the woman told the man she would marry him, and when she realized that it wasn't going to be happy, she didn't feel as if she should go back on her word. She tried doing the right thing, and it just didn't work.
OS, I know where these questions you ask are coming from. Please don't worry about being cheated on. You are such a special person, and I know that you have more love in your pinkie than most have in their whole bodies. Just give that love freely to the one you love, and it WILL come back to you.
Love to you,
growedup