The Senior Sister of Xianmen Became Her Own Substitute

Chasing Wife Crematorium (Either BE or HE Is Acceptable)

The female protagonist is the male protagonist's little follower at the beginning. The male protagonist takes her liking as a matter of course, and the male protagonist also likes other girls. After the heroine found out, she chose to leave him. The hero got tired of playing and came back to find the heroine. She really fell in love with the heroine, but the heroine didn't want to be with him.