Don't waste your time with someone you just met until you've checked them out properly. What's the point in spending time, energy and money on someone if they turn out to be married all along?
People do it all the time unfortunately. They fancy a fling on the side and go looking to meet unsuspecting people like yourself searching for a soulmate. This can only end in tears and it's best to find out the bad news earlier rather than later.
There's no easier nor quicker way to find out if someone is married than by going to the Government-Records.com website and searching for them there.
Be prepared for a shock - you never know what you are going to find when you do a simple background search on someone. They might be married but they might have a criminal record or have arrest warrants issued on them too. You will be able to find all of this information and a lot more as easy as pie by using the searchable public records database.