I think this has more to do with her realizing that she’s compromising her own values in this relationship than anything else. She’s always wanted more, and you keep making it clear where your boundary is. I think she’s hoping you’ll change and this last incident where a pregnancy scare brought out your true feelings that you really don’t want kids, made her realize that at her age of 35 (thanks for the information on your pre-posting questionnaire) your not wanting kids may be very important to her. She may want kids. She may think she can change you and your feelings. Or she may not have realized your feelings until this pregnancy scare happened. And when you were clear with her, she decided to retreat. I think that because you’re in your 20s and she’s in her mid-thirties, she may want more of a commitment than you’re interested in, and the silence that she’s giving you has more to do with her figuring out that this isn’t right for her than anything else. This is really about incompatibility and her being slow to figure out that she isn’t going to get what she really wants with you. I hope that helps.