 Kathleen Kathleen get the DNA testing never be afraid of the truth never be afraid of facts the timing is unfortunate with your sister but even though you say you love her she doesn't call you on your birthday and it doesn't sound like she told you the truth so I would not let you you've gone it may overshadow her wedding but that's the consequence not of you but of the family members who perpetrated this and they don't have to let that happen