Risk of transmitting std's are much higher! The risk of getting pregnant. The risk of falling in love with someone else. The risk of jealousy. The risk of missing out on a better, more fulfilling relationship that is actually healthy & rewarding. The risk of pissing off someone else's spouse. And if you have kids.... the risk of teaching them they aren't worthy of respect & relationships are as dispensable as everything else in the USA. Sad, this question overflows with low self esteem. You can do better.