it seems morally wrong to do that but genetically speaking, they are only very slightly more likely to produce children w genetic problems...the rates are really close to two strangers mating and producing a child w genetic problems. it isn't the same as breeding w your brother. just saying.
I fell in love with my cousin many years ago and we ended up having a sexual relationship. Only reason we didn't get married or tell anyone was because of the stigma behind it. To this day we both wish we could be together as a couple. I'm sorry but you can't help who you fall in love with.
And...we didn't grow up together. I didn't meet him till I was around 15, but we did know we were cousins.