Frasier does not see Daphne again until everyone arrives at the hotel for her wedding. He offers his sympathy about Niles, but she claims that she was just suffering pre-wedding jitters. Frasier doesn't believe her. Martin warns him not to interfere unless he is absolutely sure that it is the right thing. Frasier observes Niles and Daphne sharing a dance after the rehearsal dinner, and realizes that they are obviously in love. He takes Niles upstairs to talk, and tells him about Daphne's feelings. A panicked Niles is unsure of what to do. He tries to talk to Daphne alone, but everyone keeps interrupting them. He finally tells her that he loves her and would leave Mel to be with her. Just as he asks how she feels about him, her family bursts in and takes over the room. Niles and Daphne take refuge on the balcony. She kisses him passionately and admits that she loves him, but then rejects him because she thinks it would be too hard to undo their commitments. (thetvdb.com)