After d failure of my marriage,i fell in love with my 2nd cousin,without knowing it???Wat shud I do???

I found out that my husband has a mistress so immediately i went home 2 my country and try to win him back...He said dat during my absence,he realized that he love more his mistress than me..But i beg for his love so I even suggested that I'l be in the morning nd his mistress wuld be in the evening..To make it worse,I even agreed 2 be on weekdays and weekends 4 his mistress..But as the days went on,I got crazy that i felt dat why i hav 2 suffer like this when I'm d legal wife..I made him choose,is it me or the other but to my dismayed,he chose his mistress..My whole world stumbled that tym so I resort of 2 much drinking wid my frens and relative but accidentally sumting happened b/w me & my 2nd cousin..And after that incident,we both felt that its a mistake and we must avoid it happen again..But the problem is,as the days went on,i fell in love wid him as he took care of me & feels lyk he made me live again..He said that he felt d same wid me now but d problem is we are blood related?.