Of course, it all made sense now.

2 seconds sound clip from the Garfield's Babes and Bullets (1989) movie soundboard.

You can hear this line at 00:13:08.142 in the Blu-ray version of the movie.

Quote context

[...]

- He was going to visit Maudie O'Purr, a Saint Morris alumna.

- Why was he going there?

- Maudie is a big contributor to the university. Especially to the History Department.

- Professor O'Tabby called on her every Friday night to help her in any way he could.

- You see, she's a widow. It was Maudie's wish that no one know of his visits. She was a bit eccentric in that regard.

- Of course, it all made sense now.

- O'Tabby, under the guise of visiting a benefactress to the university was in fact having a clandestine affair with a wealthy widow. How old is Maudie O'Purr? Ninety-three.

- Rats.

- Mr. Spayed, I didn't mean to insinuate anything by my statement.

- It's just that, on more than one occasion, Professor O'Tabby had to put a woman's feelings in perspective.

- You see, he was a handsome man, and quite popular with the ladies.

[...]