Avengers: Endgame marks the end of one chapter for the Marvel Cinematic Universe and the beginning of one for a Captain America cosplayer in San Diego.

Shawn Richter took advantage of the movies world premiere Monday in Los Angeles to heroically propose to his girlfriend, Lisa Lower.

Richter was dressed as Captain America for the occasion, while Lower was decked out as the heros longtime crush, Peggy Carter.

He has always loved Captain America and its a favorite cosplay of his, Lower told Inside Edition . We also have tattoos that say how we are with each other till the end of the line ... which is what Captain America says to his best friend Bucky Barnes.

The two have been dating about a year and a half.

Richters proposal was as humble as something Captain America might say.

Its a little bit smaller than an Infinity Gauntlet, but I think youre gonna like it, Richter told Lower as he offered her a ring on TV.

This is one Avengers spoiler Marvel will probably allow us to post: She said yes.