I'll always Be in Love with You dates back to the 1920s. It's been done in both 3/4 and 4/4 time.

Here's a 1929 recording by Belle Baker that starts in 3/4 time and then breaks into 4/4.
https://www.youtube.com/watch?v=FrguhCN15sY

And here's a Brenda Lee version in 12/8, which is effectively 4/4.
https://www.youtube.com/watch?v=Rq6ZYciTQyM

My favorite version was a slow one from the 1940s by Dinah Shore, but unfortunately there's no decent version of it on YouTube.

Here's my version of this pretty ballad in 3/4.

I'll Always Be in Love with You - Sam H. Sept

Cheers,
Jer