FALLing in love again???

omg...
i think im in love again...
shit...
im in love with one of my pet siblings...
this is a bad thing to do I know it..
what should I do???
should I just avoid meeting with em??
should i just forget about that relationship or should i just admit it to em that im in love with em...
man i cant understand my own heart what kind of person i am...
this sux till the max..
can anyone help me?
i wonder who?