What do you think/do if your couple has an affair (scandal)while you never doing make love (as a Muslim we cant to do that)with another people when you marry your couple(Wife/Husband), and you have a kid from your couple.
If I'm hearing you correctly, I suggest dealing with it the way Allah say's deal with it and the first thing is producing the four witnesses, other wise you cant really open your mouth about it or it will be slander on your part punishable by 80 lashes either here or the next life (dont mention persons name) sounds like this may have happened before the wedding and now the other half has found out. well she still married the brother it seems, so there must be something there, maybe the brothers having problems with the betrayal.Which Im sure he is. If he loves her I truely suggest getting some counseling for both parties so the healing process can began. communicate, communicate, communicate, cant stress it enough. your brother Hanif