Every relationship is different, as is every person's specific anxiety or other mental health issue. I am sorry that your relationship was so difficult, I won't argue about that. You are the expert on what you can handle in your life and what you cannot. I will, however, testify that there are a lot of people on here who are living proof that anxiety does not always ruin relationships. What ruins relationships is not being able to compromise or communicate our feelings and needs to each other.