awful . be they try to save time and film . there need to be many more step between where the character start and where they end . where be the struggle and inner conflict . they just get the chance to do something completely uncharacteristic and with only one hesitation they lurch at it . it like theyre desperate for a change . where be the impetus for this . surely they have have plenty of opportunity for experimentation before now . this would only be believable if it have be establish that they have be live their entire life ( through high school and college and and medical school ) completely isolate from society . haven not they ever have to deal with temptation . they act a if they get marry in high school and have be live shelter life ever since and cling desperately to their marriage and spurn all advance . i do not remember if they state how long they have be together and but surely they have have other relationship and other temptation . the other possibility about how this could happen so easily be that it isnt uncharacteristic but be common . but if they be promiscuous that undermine the whole script . awful . with more development the character might have reach the same situation . they might have be able to change that much and but these be clearly two people who have spend year intentionally make themselves inflexible ( a his mother say ) . they could have rebel ( even secretly ) before now . they must be about 26 year old . i can not believe that they have be repress for that whole time and yet well adjust enough to build a relationship together . they do not seem sexually repress with each other ( even if it isn not as great a it have be and they obviously be very sexual ) . i just do not buy it .