The Crucible Act 1 Quote

Abigail: John-I am waitin' for you every night.
Proctor: Abby, I never give you the hope of waiting for me
Abigail: .. she puts me out..(page 149)
Betty: You drank blood to kill John Proctor's wife! (page 148)

From the first two lines we can see that Proctor surly had unusual relationship with Abigail. Very likely to be the same unusual relationship between Dimmesdale and Hester.
The following two lines tells the reader the consequence of the relationship, one is that Proctor's wife finds out about the relationship between Proctor and Abigail and she kicks Abigail out of the house. The other is Abigail drank blood to kill John Proctor's wife resulting in the sickness of the girls and witchcraft rumor that goes around the village. The consequence of the relationship between Dimmesdale and Hester is that Hester have Pearl, get publicly condemn, and have to wear the scarlet letter for the rest of her life.