Reaction for Gertrude--Hamlet

Gertrude is the mother of Hamlet.. after the king's death, Gertrude end up marrying Hamlet's uncle... which is ridiculous because I can never imagine marrying someone who is related to you in a way. I feel as if Gertrude has lost her mind marrying someone whose part of her family. I have no say about her marrying a month later after her husband's death... though I think it is a bit too fast to move on... I have no right to rant about this because in reality, there are times people tend to move on really fast after the lost of their loved one--this goes the same for relationships and break up--forgetting bout that person if they broke your heart or due to hatred...but at the same time.. I feel as if Gertrude still has feelings for her dead husband... really... i don't understand how she can easily marry another man when she still thinks about her dead husband. Gertrude is really something.... WOW.