1-9 Sudoku (Daily Sudoku League #5)

This 1-9 Sudoku is the 5th Sudoku Puzzle for The League of Extraordinary Ladies & Gentlemen. Can you solve this hard Sudoku Puzzle Variation?

I thought to post this Sudoku around Valentine's Day to suit the theme of this puzzle. Anyway, I will create a similar-looking puzzle for Valentine's Day as I have to post it today for the daily league.

Rules of 1-9 Sudoku

Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column, and outlined region. Additionally, numbers outside the grid represent the sum of all numbers between 1 and 9 within the respective row or column.