There could be several reasons why your ex is talking and trying to be friends with your friends after the breakup. Here are some possible explanations:
Gaining Information about You: Your ex might be trying to gather information about how you're doing and what you've been up to since the breakup. They could be curious about your life and may not want to ask you directly.
Maintaining Connection: If your ex was close to your friends during the relationship, they might be trying to maintain those connections even after the breakup. They may value the friendship and not want to lose those relationships just because the romantic aspect of the relationship with you has ended.
Feeling Lonely or Seeking Support: Breakups can be tough, and your ex might be feeling lonely or in need of support. They could be reaching out to your friends for comfort and companionship during this challenging time.
Jealousy or Revenge: In some cases, an ex might try to befriend your friends out of jealousy or a desire for revenge. They might hope that by being close to your friends, they can keep tabs on your life or make you feel uncomfortable.
Social Circle Overlap: Sometimes, social circles can overlap, especially if you and your ex had mutual friends. It might be a natural consequence of shared friendships and activities.
Wanting to Remain in Your Life: Your ex might genuinely value your friendship and wish to stay in your life in a non-romantic capacity. They may believe that being friends with your friends could facilitate that.
Trying to Make You Jealous: By becoming friends with your friends, your ex might be attempting to provoke a reaction from you. They might want to see if you'll react emotionally to their actions.
Whatever the reason, it's essential to consider how you feel about the situation and how comfortable you are with your ex interacting with your friends. If it makes you uncomfortable or if their intentions seem dubious, you should communicate your feelings with your friends and possibly with your ex as well.
Additionally, it's essential to set boundaries for yourself after a breakup. If you feel that your ex's actions are hindering your ability to move on or causing you distress, consider limiting or cutting off contact with them for a while. Give yourself the space and time you need to heal and focus on your own well-being.