This depends on the situation. If my girlfriend is being reasonable in making me quit gambling because she is seeing massive changes in me that negatively affects my well-being, our relationship, the people around me, and financial aspect, then I will listen to her. Because I believe that our partners will eventually become our lifetime buddy for richer and for poorer and they just want us to become the best version of ourselves. They have good instincts and gut feeling as well as observational skills which makes their claims reliable. But of course, this still varies.

If you also know it to yourself that gambling is doing so much bad than good to you, then it is your cue to voluntarily stop before things get even worse.