In the chorus part I just go to B7 instead of Bm/B7 because it's an ascending chord to take you to the five, like in alot of songs. It's a classic device. I think the Bm is implied anyway.its like the B chord in i wanna hold yer hand. It can be a minor or a seventh. It's kind of interchangeable, but is actually a B7. Chordwise, their songs are forgivable in that respect.