Sad Supernatural Imagines :'(

I've always been yours. (Cas X Reader)

(You're getting married to a dickhead and don't realize that Cas is deeply in love with you.)
(Age 28)
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"Maybe I wouldn't have to drag you away if you just didn't get into things like this....Why him!"
Cas yelled at you from the door that you had just ran through.
"Maybe you should stay out of my damn personal relationships. You're my best friend. One of my only friends really. I would think you would support me."
You said while slowly turning and waking to him.
"I can't. I cant let you ruin your life for that shitface. You deserve better."
You pushed him roughly.
"No I don't. I want him, Cas. It didn't matter where I went, what I did, or what happened, he was there for me. I thought you would be happy for me, Cas."
He pulled you into him and kissed your forehead lightly.
"I don't trust him. I'm happy that you're happy. I just...I just don't want to see you get hurt. I love you. You are important to me. I'll be damned if I let you go through with the marriage."
You excepted his gesture and hugged him back.
"I'm just so scared...."
He pulled away from you and looked at in your eyes.
"Scared of what, darling?"
You looked down and tried not to let tears fall.
"I'm scared...I'm scared that if I don't take my chance with Alex, I'll never find anyone. Nobody wants me the way he does. I know that he's toxic. I'm not stupid. I just don't want to end up like Dean. He lost Lisa. I can't loose Alex."
He grabbed your face and leaned down till your noses practically touched.
"You have me. You've always had me. I know that you don't feel that way, but, I love you. I love you more than you could ever imagine. That's why I can't let you do this. I can't loose you, (Y/N)."
What happened next was something that you had wanted to do since you met Cas.
Though that was years ago.
He kissed you.
It was gentle and soft. Quick.
Yet it was everything that you'd hoped it would be.
It left you dizzy and confused.
A complete love struck disaster.
"....What was that?"
You whispered to him while staring into his ocean like eyes.
"I don't know, but I liked it."
You nodded and kissed him once again.
This time with much more passion and force.
The make out session ended in a very rated R manner.
On the couch in a naked and sweaty lump.
Your head laid on his chest while he played with your hair.
"I don't love him."
He looked at you with confused eyes.
"I thought you said-"
"I know what I said. I don't love him. I just don't want to be alone. I'm terrified of not being able to please anybody."
You traced circles on his chest with your finger.
"You don't have to please us, (Y/N). We love you for you. And we will always be here for you. By we I mean me and the boys. I want you to be mine, (Y/N). I've always wanted that. I never thought it would happen."
You  crawled up a bit more and pecked him on his lips.
"Oh Castiel....I've always been yours. "
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567 words (Sorry this was so short.)