What would you do?OK to make a long story short my now exhus...

What would you do?OK to make a long story short my now exhusband and I are both in the military.We were married almost 5 yrs and truly had a great marriage then he deployed to Iraq while I stayed behind to keep our 3yr old.He quit calling home mid-way through his deployment and I found out he was having a affair with a married woman.We separated when he got home from Iraq.We went back-n-forth on staying together for about 6mos.During that time his affair got divorced from her spouse.They continued seeing each other.And we finally decided to submit our divorce papers and within 2wks we were divorced.He immediately started telling me he regreted it and made a huge mistake every time I saw him.Then 6wks after our D he went and got married to his affair.A wk after I found out on my own that she was pregnant and she got preg while we where still married,which in the military the adultery alone could ruin them not to mention the pregnancy while he was still married to me.But I havent chose yet to turn them in.The icing on the cake is they have been married for 2ks now and he just started sending me tons of txts about wanting to have an affair with me.And he came over to tell me he cant stop thinking and dreaming about me,and hes still going on about how he regrets leaving etc...And I dont why and how but he actually talked me into fooling around with him and we did.So now Im basically having a affair with my ex who Ive only been divorced from for 2mos and hes already remarried and having another child with the woman he left me for.wow.Im lost!

Have you, the ex, and his wife considered making a trio?