It's challenging to determine someone's exact motivations without direct communication, but I can offer some possible reasons why your ex might be behaving cold and unfriendly:
Hurt and Resentment: If the breakup was difficult for her or if she felt hurt by your actions, she might still be carrying resentment or negative emotions towards you. Starting to date someone new might be her way of coping with the breakup or trying to move on.
Protective Mechanism: Your ex may be trying to protect herself from getting hurt again. She might be hesitant to reopen old wounds or allow herself to be vulnerable with you, fearing that history might repeat itself.
Maintaining Boundaries: She could be trying to establish clear boundaries to prevent any confusion or mixed signals between you two. Being cold and unfriendly may be her way of signaling that she wants to keep her distance.
Emotional Processing: Everyone heals and processes emotions differently. While she might have started dating someone new, it doesn't necessarily mean she's fully moved on or processed her feelings about the past relationship.
Independence and Growth: Your ex might be prioritizing her own personal growth and independence. She might be focusing on her own life and goals rather than rekindling a relationship with you.
Lack of Interest: As much as it may hurt, it's possible that she simply doesn't have any interest in rekindling the relationship. Her focus on a new partner and being cold towards you might be a way of signaling that she has moved on.
Influence of Friends or Family: Sometimes, friends or family might advise someone to be distant and unfriendly towards an ex to avoid any potential complications or heartache.
It's essential to give her the space she needs, respect her boundaries, and not try to force her into being friendly or open to reconciliation if she's not ready. If you genuinely regret your mistake and want to make amends, it's best to focus on self-improvement and personal growth. Give her time and space, and if she's open to it in the future, consider having an open and honest conversation about your feelings and intentions. However, also be prepared for the possibility that she might not be interested in revisiting the relationship. Remember that everyone's healing process is unique, and sometimes relationships don't work out, but that doesn't mean you can't learn and grow from the experience.