S2·E27 Reconciliation

Patty is being sought by her sister whom she hasn't seen for 15 years, so German decides to give her the good news.

However, he finds that Patty wants nothing to do with her. As a result, German goes to the 'alpha' grandfather for advice, but is even more confused than he was. Later, German decides to visit Patty's sister to get them back together. How will Patty take it?