Dortmund is doing great in the first half. I don't know how long their lead will last cuz I no more enjoy their style of play. They outplayed Bochum in every axis during the first half but now I think Bochum has bounced back to a better state than they were in the abd The match now seems difficult for Dortmund.
From the proximity in the top table, I think this is the only chance for Dortmund to over through Bayern,  this win is really important for them and if they miss, the Bundesliga title will become a free ticket to Tuchel and his boys.