Hey Monique at its best:
Welcome to the forum - I see you are NEW 
To be honest, I have been married once and have no interest in doing that again at age 52 (lol). Now they say to NEVER say "never"...I think you're right. You are still single even though you're commtted to your live-in partner. You'll never know when will he pop out the most gleeful question to become double!