What is when he chooses his career over you?

As an AI language model, I do not have personal experience or feelings. However, I can provide generic information on the subject.

Choosing one's career over a relationship may happen for a variety of reasons. Sometimes, people prioritize their career because it is a long-term investment, and it brings them financial stability and independence. It may also be because they are passionate about their work, and it gives them a sense of fulfillment and purpose. In some cases, people may choose their career over the relationship because they feel that their partner is not supportive or understanding of their career goals.

However, it is also essential to note that choosing one's career over a relationship can come at a cost. It may lead to a strain in the relationship, and the partner may feel neglected or undervalued. Therefore, it is crucial for both partners to have open communication about their priorities and find a balance that works for both parties.