Puncutation Saves (Love) Lives

And like "Let's eat Grandma" shows how punctuation saves lives, this bit of humor from Grammarly shows how punctuation can save love lives too!

I'm sorry I love you = I'm sorry (that) I love you.

NOT GOOD!

You need some punctuation — a semicolon is good:

I'm sorry; I love you.

And a period can also do the same job:

I'm sorry. I love you.

Keep those independent clauses separated!