I was not expecting the adult breastfeeding scene.
So after escaping from the military complex (which blew up due to a mishap) he shambles along until he finds a church with food offerings for God. The lady there ( I think she’s the Vicar’s Wife) tells him it’s God’s food and offers her breast for nourishment (“Oh you’re just a boy!”). He is then fully nourished and sent on his way.
Actors have multiple roles in this film so I’m pretty sure she’s the same one he was fornicating with earlier in the movie, the sort of hostel housekeeper/companion.