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10 romantic email subject lines to spice up your Valentine’s Day

Has your relationship with your subscribers lost some of its spark? Is your brand-consumer relationship just not quite as exciting as it used to be? Are you looking for a way to spice things up in the inbox and bring the love back into your email marketing life? 


Maybe it’s time to remind your brand’s audience how you really feel about them with some titillating and romantic Valentine’s Day email subject lines… 

Could our cutting-edge AI marketing language generation and optimization technology help you out with that?  


Sure, our industry-leading deep learning engine may not fully understand the concept of human love and all its magnificent intricacies (yet), but it has proven time and time again that it’s up to almost any task. Maybe we’ll let it have a shot at the wonderful world of romance someday soon… 

But not today.  

Today Phrasee is busy generating awesome email open rates and reducing Facebook ad cost per lead rates for our many awesome partners.  

But that doesn’t mean we can’t speculate about how to inject some passion into your brand’s email subject lines just in time for the most romantic day of the year…



“Our email has arrived! What were your two other wishes?” 

Everyone respects confidence. 


“We’re new in town. Could you give us directions to your spam folder?” 

Self-deprecation works every time. 


“Do you like sales? Because clothing is 100% off at my place.” 

This one will work great until subscribers start showing up and demanding free stuff. 


“If you were a fruit, you’d be a fineapple.” 

There’s no bigger turn on than a quality pun. 


“Do you know what our shirts are made of? Marriage material.” 

People still get married, right? 


“Do you believe in love at first sight, or should we email you again?” 



“We’ll cook you dinner, if you cook us breakfast…” 

You’re welcome, restauranteurs of the world. 


“If you were a library book, we’d check you out right now.” 

Flattery will get you everywhere. 


“What’s a handsome so-and-so like you doing reading a subject line like this?” 

See what we did there? 


“Is it hot in this inbox, or is it just you? 

We’ll show ourselves out. 


Will any of these email subject lines work on your subscribers? We have no idea. But the good news is that our AI-driven marketing language generation and optimization does. Book a discovery session today to find out how AI-optimized subject line language can make your brand more money through better email marketing! 

The email marketing strategy playbook for 2021

The email marketing strategy playbook for 2021

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Discover how applying actual AI to language can deliver big results!