Since Odin didn't allow Thor to be with his mortal love Jane Foster, Thor decided to do something about the matter, he had asked Heimdall a great favor, Heimdall accepted knowing the great and pure love his prince was feeling for that mortal, Thor had asked to keep it a secret, he would be seeing Jane hidden from his father, there was no way he was leaving his Jane so he made that choice, even if it wasn't wise it was their only way out.
He arrived to Earth, his beautiful Jane was watching the stars as usual, he didn't even know what this woman has done to him, he's drooling for her; when she saw him she hugged him tightly.
"Thor, what did your father say?" She asked hoping for good news.
"He said I could not see you anymore, but I will never be parted from you again, I couldn't breathe without you, I told Heimdall not to tell anyone and I will be coming as much as I can to see you" He said with a sad smile.
"Thor, that will be too dangerous for you, I could not obligate you to do that, I'm sorry" She said as a tear streamed down her cheek, he immediately brushed it away and replied.
"Of course I will take the risk, whether you accept it or not"
"Thor, what if your father caght us, he would punish you, it's better for you to stay away from me"
"I will never do that, and I'd rather suffer any punishment than to be parted from you"
"Are you sure about this?" She asked worried, knowing Thor was stubborn and would not give up.
"Completely, I've never been surer in my life"
Thor was back on Asgard after spending the night with his beloved and true love. The months passed quickly by and Thor continued seeing Jane. Heimdall kept his promise not to tell The King but he was getting his own conclusions of where his son were in those times of absence.
"Heimdall, to Midgard now!" The King demanded and The Guardian just nodded. He arrived to Jane Foster's house and found Thor and Jane kissing passionately, he cleared his throat and they instantly pulled away from each other.
"I expected to find you like this, son" Odin said with sarcasm.
"WHAT ARE YOU DOING HERE?!" Thor demanded, shielding Jane with his body and hammer, scared of what his father was capable of.
"Thor, son of Odin, as a punishment for overruling my orders and seeing this mortal, you shall have no memory of Asgard, you will not remember me, nor her, nor any of your friends nor nothing, and she will not remember you either, everyone who knows you will not remember you, you will live as a mortal until then" The Allfather took off his power and weapon.
"Why are you doing this to us?" Thor asked expecting a rational answer, with a shocked face.
"I have nothing to answer to, may this powerful spell be it!"
"I LOVE YOU JANE, I WILL FIND YOU, AS LONG AS IT TAKES, I SWEAR IT WITH MY WORD" Thor yelled as a tornado was trapping them.
"I LOVE YOU TOO THOR, I HOPE TO SEE YOU AGAIN SOMEDAY!" She yelled, crying. Then everything went black, all their good memories and romantic moments together were vanished.