How can I help my boyfriend who is feeling hopeless?

I’m not sure entirely what you’re going through, but if you ever think someone is in immediate danger of harming themselves it’s a good idea to tell someone. Besides that, you are definitely being a great support for listening, and sometimes there isn’t a better thing to do than to be a receptive listener for someone who is struggling. If your bf isn’t already seeing a psychologist, psychiatrist, or even a therapist, I would suggest that as a next step if it’s feasible for him. Not everyone is able to access these resources but these people are usually able to assist you through these types of distress. In addition I hope you are also finding the time to take care of yourself, as being a great support can often drain or distract yourself from your own caretaking, and sometimes exacerbate our own similar experiences.