No she hadn't. Disguised as a nun Julia escaped from the chapel during the wedding, after Chase pursued her. Then she went back to Falcon Crest, done a terrible act when she kidnapped Joseph and took him to the hideout, which was the springhouse.
The spiritual/religious concept was imho a good distinction, in FALCON CREST. While Fr. Bob Curtis wasn't in the main cast he was always on hand to provide support for Mrs. Channing, if needed. His guidance for Fr. Christopher Rossini was a good storyline. Putting Julia into a convent could be viewed by some as slightly far fetched, since she was never particularly religious unlike her mother and would have been as far away from a typical nun, as you're ever likely to encounter. However the priest envisaged potential in Julia, who earlier done a nun parody. Abby Dalton's character found peace in her new Oregon home and she needed this, very much. Fr. Bob's scenes with Melissa in season 6 were compelling.
Father Bob Curtis is being interviewed about his time in California's Tuscany Valley show, ('behind the scenes' from season 1-9, 1981-'90):
"I enjoyed working with many of the cast members. Jane and I have been friends for many years; she is one of a kind and a real professional. Ana Alicia is a sweet person. I baptised her children. Abby Dalton was a special favourite. Among the guest stars, Kim Novak was one of many I found to be of generous spirit. It was especially interesting to be on set with Mariska Hargitay (Jayne Mansfield's daughter), since she had been a student of mine while she attended our parish school."