Chocolate Peanut Butter Fudge Swirl

milk chocolate bar (such as Hershey Bar, broken into pieces)

pkg. semi-sweet chocolate chips

plain white chocolate (try to find actual candy bars... not white almond bark or baking chips)

pkg. peanut butter chips (the one I found was Reese's brand)

butter (divided (1 stick))

7-8 oz jar marshmallow whip ((marshmallow fluff), divided)

sugar

evaporated milk