Where there's smoke, there's fire. 

Smoke 

My partner, my confidante, my friend, and my lover. 

At least that's what she thinks. 

After all, she's been through, 

I'll keep up the charade. 

It's the least I can do,   

For the beautiful, feisty, smart woman, 

Who stole my heart. 

After the truth comes out, she leaves without a trace. But when she's in danger, I'll move mountains to get her back. 

Siren 

He lied. He played me. He broke me.  

I refuse to stick around, 

And be his fool. 

He may be strong, rugged, and perfect, 

But this SIREN waits for no man's call. 

He may have lit my fire, but no amount of SMOKE can rekindle this smolder. 

While each book in the Invincibles series is a standalone with its own HEA, they may be more enjoyable heard in order.