What is ex boyfriend says he misses me then ignores me?

As an AI language model, I don't have personal experience or knowledge of your specific situation. However, in general, when an ex-boyfriend says he misses you and then ignores you, it could indicate mixed feelings or confusion on his part. It's not uncommon for people to feel conflicted about their emotions after a break-up. Alternatively, he may just miss the companionship or physical connection you shared, but not necessarily want to reconcile the relationship. It's important to communicate with your ex and clarify where you both stand to avoid any misunderstandings or hurt feelings.