Hi Mjn2ts ;
I have found that this is ( forgive the pun " a sticky situation " ) I use Tamiya's liquid glues and sometimes if I do something like this , an application of the same glue will weaken the joint enough to correct the problem .
Now with the glue you used it might not work . How long ago did you glue the wings ? I ask this because , I have found that an application of Testors liquid will help you seperate the wing halves .
That and a very sharp ( New ) X-Acto number 11 blade applied to the leading edge joint and carefully rotated into the joint , the length of the wing , will usually work . On the trailing edge it will be tricky , so be very careful . T.B.