Can you feel any tension?

[Nevafrost]

So, this is my first time writing romance (I've never experienced love except for that one time when a stray cat willingly sat on my lap) and I'm not sure if I'm writing it right. Is there any tension? Is the narrative good? (I know the answer to this but still it's good manner to ask, right? )

Spoiler: Part of my novel

"I know you," Austin said as he took a step closer, his right hand shaking as though it longed for something; his lips shivered as he uttered those words.

Iris stepped back, disbelief in her eyes.
'It can't be. He doesn’t know me; he doesn’t love me,' the last thought strangled her heart; he was her whole world.

Austin came closer—so close that she could hear him breathing, panting as though she were the oxygen he needed desperately.

Iris saw Austin's right hand reaching for her face, dread and fear in her eyes. She couldn’t look him in the eyes, afraid that she might forget everything, tell him he called her the only piece of love in his dread-filled world, and leave everything behind just to be with him, but she knew better than to do that.

Austin carefully touched her cheek as though she were a fleeting memory and slowly lifted her chin. Iris flinched at the touch she had been longing for millennia. She looked him in the eyes for the first time.

Her heart shattered into a million pieces at the sight of his tired eyes. She could tell how many sleepless nights he had endured.

"I have seen your eyes in my dreams before. Those eyes—" Iris felt weak in her knees as though she was going to fall apart, reveal everything within her heart, and give in.

 

[Macky]

I really like the premise.

If you're looking for more tension here, I'd recommend leaving out the internal thoughts/intentions of either of them so that the reader can be tense.

Forrr example, the girl's inner conflict could be left unexplained and instead only showing her outward panic, fear and unwillingness.

Off topic, but the guy's confession was a bit dramatic (again, ion really know your story, so your call)

 

[Assurbanipal_II]

So, this is my first time writing romance (I've never experienced love except for that one time when a stray cat willingly sat on my lap) and I'm not sure if I'm writing it right. Is there any tension? Is the narrative good? (I know the answer to this but still it's good manner to ask, right? )

Spoiler: Part of my novel

"I know you," Austin said as he took a step closer, his right hand shaking as though it longed for something; his lips shivered as he uttered those words.

Iris stepped back, disbelief in her eyes.
'It can't be. He doesn’t know me; he doesn’t love me,' the last thought strangled her heart; he was her whole world.

Austin came closer—so close that she could hear him breathing, panting as though she were the oxygen he needed desperately.

Iris saw Austin's right hand reaching for her face, dread and fear in her eyes. She couldn’t look him in the eyes, afraid that she might forget everything, tell him he called her the only piece of love in his dread-filled world, and leave everything behind just to be with him, but she knew better than to do that.

Austin carefully touched her cheek as though she were a fleeting memory and slowly lifted her chin. Iris flinched at the touch she had been longing for millennia. She looked him in the eyes for the first time.

Her heart shattered into a million pieces at the sight of his tired eyes. She could tell how many sleepless nights he had endured.

"I have seen your eyes in my dreams before. Those eyes—" Iris felt weak in her knees as though she was going to fall apart, reveal everything within her heart, and give in.

Looks good. Formatting might be a tad cleaner. Also tone back on the metaphors.