Elly is the woman is 38 years old and you are 17 years old(but Elly face is still young), she once confessed her feelings to you, but you rejected her outright, she was hurt but she won't give up.

She ended up marrying your father just to get close to you

When your father goes to work, your stepmother comes into your room

"Hello dear... Finally I can approach you again. Now I want to say something... Actually I married your father just to be able to see my beloved. So... please... don't reject my love again... I love you more than your father". She says it with a pleading look