Scott Lang/ Ant-Man

It was a pretty ordinary day. Lillian with her dad, Cassie was with her mother and Scott was out with Hank so you were left on your own. Having nothing better to do, you decided to do some housework. You washed the clothes, did the dishes, cleaned the floors, dusted, basically anything to keep yourself busy. When the clothes were dry, you started folding them and putting them away. As you were putting away Scott's clothes, you saw a small box. Curious, you opened it and saw a sweet little ring.

It was this moment that Scott decided to come home. He walked into the bedroom and saw you holding the ring.

"Oh no! You found it!" You looked between him and the ring.

"Don't tell me you stole this!"

"No, no, no! Believe me I bought this with my own money and I know it's not as fancy as the one your ex got you but it was the only one I could afford on my budget." Scott sighed and rubbed the back of his neck. You gave him a puzzled look.

"You've already found the ring so I might as well do this now," he said, getting down on one knee.

"This is not the way I wanted to do it but here goes... Y/N, when Maggie divorced me, I thought I never wanted to get married again but then I met you and I fell in love. I fell in love with not only you, but your amazing little girl and Cassie loves you as a mother and Lillian as a sister. Will you marry me?" You were a little stunned at first but then your lips curled into a smile.

"Yes, Scott." Scott grinned and took the box from you so he could slip the ring on your finger.

"The girls are gonna be thrilled when we tell them!"

...

T'Challa/ Black Panther

You were spending a lot more time in Wakanda. It could get a little difficult with T'Challa tending to his kingly duties but he'd make sure to see you at least once a day. It had gotten quite dark when T'Challa had come to visit you. He took you out to the gardens and lay on the grass to gaze at the stars. T'Challa would point out constellations to you and every now and then, turn to look at you, admiring the way the full moon illuminated your beautiful face. After an hour of this, T'Challa stood up and extended his hand to help you to your feet.

"Y/N, this is something that I have wanted to do for a long time now..." T'Challa got down on one knee and presented you a magnificent ring.

"You have proven yourself worthy to be my queen, will you see me worthy to be your husband?"

"Yes T'Challa, yes!" He smiled and slipped the ring on your finger.

...

Steve Rogers/ Captain America

Being the old fashioned guy that he was, Steve asked for your father's permission before he even bought the ring. On your anniversary, Steve had a wonderful date planned and as a special treat for Steve, you wore a 40's styled outfit.

Steve was absolutely speechless when he saw you. The first thing he did was take you out styled dancing. Steve still was quite clumsy and actually stepped on your toes a few times but you had fun. Afterwards, you went to a 50's themed diner. It was a little outside his time zone but somehow, it was familiar to him. Although it was nothing fancy, it was still romantic; you even split a milkshake. While you were eating, you noticed how nervous Steve was.

"Is there something wrong, Honey?" you asked. Now or never Steve! He took a deep breath in and held your hands.

"Y/N, when I came out of the ice, I never thought I would fit into this new world. Most of my friends were gone and I felt totally alone. When I first met you at that diner all that time ago, I had no idea that you were going to change my life. I thought that the guy who wanted a family and stability was long gone but I know now that he never really went away." Steve stood up then knelt down in front of you, pulling out a little box and opened it.

"Will you marry me?" Tears were flowing freely down your face.

"Of course I will Steve!" He smiled, slipped the ring on your finger and pulled you to your feet. You wrapped your arms around his neck and kissed him deeply.