Was single till late 20s. Started being super social and extrovert (I was talkative by default in childhood) without thinking about my stutter. Confidence increased, and stutter still remained but that allowed me to get into first relationship. 3 years and a few more girlfriends, finally got one who is my wife now. My learning was that inner confidence is a large factor in becoming boyfriend/girlfriend-material, and how much you let your stutter weigh you down is up to you. Be known for something else (a hobby, a skill, talent) other than your stutter, and you should be good.