Action beats and dialogue

[Gerri Attrick]

Is it correct to put someone's action beat inside another character's dialogue?

I have this (we're in Eleanor's POV, the major is speaking):

“And it worked perfectly, milady.” She glanced up sharply, suspecting mockery, but his face was grave. "It was an ideal way to fool them. Even if I'd thought of it, I wouldn't have dared suggest it."

I can't make up my mind whether I should split it out, or not.

[Lynn]

I actually see this a lot in fan fic writing, and I'd say a big fat no.

It throws me off and makes me question myself about who is speaking and who is doing.

It will probably be confusing to at least a few people.

[idontknowyet]

please no!!!
action and speaker together or i am soooooo lost its not funny.

[elleoco]

Split it out, and when he speaks the second time make sure it's clear it's him.

“And it worked perfectly, milady.”

She glanced up sharply, suspecting mockery, but his face was grave.

"It was an ideal way to fool them," he said [or continued would work here]. "Even if I'd thought of it, I wouldn't have dared suggest it."

[Jeff Tanyard]

What everyone else said.

[Gerri Attrick]

Thanks, folks.

I've re-written it, as Elleoco suggested. I like that much better.