A Healer girl falls in love with a Hero leaving with his party but they end up a Abandoning her. I cant remember the name would love it if you guys could help me out.

https://www.mangaupdates.com/series.html?id=154003
The Labyrinth Raids of the Ultimate Tank The Tank Possessing a Rare 9,999 Endurance Skill was Expelled from the Hero Party

Rude is a tank, known as the strongest in history. However, the Hero decided that his skills were worthless because he couldn't do anything but take damage, and threw him out of the party. His cleric friend who trusted him followed him to the remote village that Rude was forced to return to.

the Healer could be the girl that followed him - the "Hero" (Tank) that left the party?

Is it E Rank no Kusushi (E-rank Healer)?

Healer Carol is an E-rank... even among adventurers, it's the absolute weakest.

Even though I was told that I’d be useless... I tried my best for my comrades and continued creating medicines but… in the end, I was still thrown out of the party!
I don’t have enough money to get back home and the future looks bleak in this strange town.

In the meantime, Carol met a dying adventurer, Kaido, by chance. She treated him with the medicine which she had created for free. While doing that, for some reason, the medicine received extremely high praise---!

I think it's "This Time I Will Definitely Be Happy!"

“Wait for me, Louisa.” Those were the words that the hero, Graham, said to me before he set off to defeat the demon king. Graham who is both my childhood friend and lover. But, I have no intentions of waiting. In fact, I have the memories of my past three lives, and in all past three lives, I have been the hero’s childhood friend and lover. However, all past three heroes always found other women and never came back to me! That’s why I will no longer waste my time waiting for the hero to come back, this time I will definitely be happy!

That the one E rank no kusushi thank you guys so much for helping me find it you guys are awesome . Much love<3