There is a rude but appropriate term in English: Askhole. This is someone who constantly asks you for advice and then does the exact opposite. Of course, this is doubly tiring for the interlocutor: first you need to discuss the evening, and then realize that it was a waste of time. Ashhol!
However, this system only works because you play your part well – the role of a smart friend who always listens. You yourself say: When it comes to tears, you are always there. Which brings us to the question: what does this mean to you? Why is it important to you to be available as an Emotional Emergency Physician? Why is it important for you to be able to give wise advice? Why do you have to be a heroine and a sage? After all, you could just say, look, you’re reliving the same story over and over and I can’t seem to help you. Please talk to someone else about this. Let’s talk about other things.
This, in turn, leads to the next question: do you have anything else to discuss at all? Is your girlfriend interested in you and your life or just herself, and your relationship is devoid of drama and useless analysis?
By the way, your friend seems to be suffering from a love and sex addiction. This is a serious, professionally recognized and, fortunately, treatable psychological problem. But by not calling it that, but by continuing to comfort your friend, you only strengthen him. This is called, using the third superlative English term, “inclusion”.
While you’re catching her falls, your girlfriend will throw herself off some romantic balcony. Help her and roll up the jumping sheet.