You may dislike it, but being in a relationship with someone does not give them the automatic right to do with you as they please I am your girlfriend now
Considering that it's historical, consent in marriage was not needed back then. Women were always used as tools for a man's pleasure. Pleasurable sex and orgasms didn't become a thing for us until .... what? Like in the 50s or 60s...? idk, but it hasn't been like centuries long yet.
this is problematic