Gabby selected Erich but when they went to tell him to be ready for the alter and proposal, he was not there. This was towards the ending of the show, and he left to be with his father who was in his dying moments and ended up passing away on July 6, 2022.
Thus, Gabby and Erich are not part of the conclusion and will not be seen on the finale. Sources have confirmed however that Gabby still picks him and he eventually proposes.
The bottom line, Erich left to be with his father and Gabby went with him.
