As a brother, you never want your sister to love someone with an incompetent personality, to have a family with her,
Being a sister again, you would never want your brother to waste the precious time of his life after falling in love with a characterless girl.
So consider for yourself,
And Don't love someone too much or too little
Love together
Respect each other
And build yourself up for each other
I loved a person very very much but she left this is very embarrassing