First of all, you need to give yourself time to think calmly and accept the fact of breaking up. Don't try to solve all the problems in a short time. Instead, you should focus on self-growth and development, such as learning new skills or participating in social activities to improve your self-esteem and self-confidence.
Secondly, you can re-establish contact in some indirect ways. You can send text messages or emails to your ex-boyfriend, ask about his recent situation, or show him some hobbies. However, don't express too much feelings or ask the other party to respond in these messages. Keep it simple and friendly, and respect each other's choices.
Finally, if you decide to start a new relationship, make sure that both of you have moved on from the past and share the same wishes and goals. At this new beginning, we should keep honesty and communication and avoid repeating the same mistakes. At the same time, you should also realize that your relationship may have a bad influence on the company, and you need to pay attention to safeguarding the interests and image of the company.
In a word, going to your boyfriend's company after breaking up is an immature and irrational behavior, which will not only damage your image, but also ruin your ex-boyfriend and your career. Instead, we should think calmly, save our ex-boyfriend in a mature and rational way, or focus on self-growth and development after accepting the fact of breaking up.