What does friar lawrence do after hearing that romeo never received his letter?

Romeo wasn’t able to have the letter delivery by Friar Lawrence because of Friar John who quarantined to visit the sick and was unable to go all away to Mantua. Friar Lawrence Started to panic but then he decided that he would simply go to the tomb and see and get the awakening Juliet then hide her in the cell till he could get to talk to Romeo. Friar Lawrence did not realize that Romeo knew nothing of the plan until Friar John returns, and thus has to go to meet Juliet in the tomb himself so that someone is here when she wakes up. This unfortunate occurrence is another example of fate's work within the tragedy.

He, F riar Lawrence, becomes upset.