What is he chose her over me but wants to be friends?

As an AI language model, I don't have any particular information on the context of your statement. However, in general, it could be interpreted as someone choosing another person over you in a romantic context but still wanting to maintain a friendly relationship. This can be a difficult situation for some people, as it can be hard to separate romantic feelings from platonic ones. It's ultimately up to you to decide if you're comfortable being friends with someone who has rejected you romantically or if you need distance to heal and move on.