Never get into any kind of relationship least of all a physical one without actually knowing the person well.  Casual sex is for animals not us humans.
Always look for someone who is sensitive and caring while compatibility  and undertanding should be the key factors  rather than personality, good looks and riches that most women look for in a man these days.
Let me tell you why my marriage failed.
I lived in India and was looking for a non resident indian because I was really keen in settling abroad. I had many proposals from Indian men but none met my approval only bcoz my heart was set on moving out of where I lived permanently. Finally the day arrived and through a matrimonial site I met the man of my dreams. He lived in the UK, claimed to be working in a top positon in a highly paid job at the Chancellor's office, claimed to be wealthy, had his own property, car etc in the UK and I blindly fell into the trap. A month later after several phone conversations he decided to come to India to get married. Imagine my surprise when I saw the  man of my dreams swollen faced, red eyed and with alcohol breath approach me at the airport to say he was the one I was looking for. If u r wondering why I was shocked it was because he had sent me a picture of himself where he looked like a film star but I guess that was a picture from his album of some years ago. Surprised I was, even shocked but not deterred. Even though my family refused to let me marry him I was so crazy about him taking me to the UK that they were not able to knock any sense into me.