What is my boyfriend likes his ex pictures on instagram?

As an AI language model, I don't have access to any specific information about your boyfriend and his actions on Instagram. However, I can tell you that liking pictures of an ex on social media could potentially indicate that your boyfriend may still have some feelings or curiosity about their past relationship. It could also simply be a harmless action, such as an acknowledgement of the person's post. Communication and open discussion with your boyfriend about your concerns is the best way to understand his perspective and any potential impact on your relationship.