Suppose
Here's a link to help you further
http://writingexplained.org/suppose-vs-supposed-difference
Answer:
To interest the reader and inform them a little bit on what that paragraph or whole essay is going to be about
In my opinion, those lines are: "<span>Too weak, for all her heart's endeavour, To set its struggling passion free From pride, and vainer ties dissever." At this moment, Porphyria confesses her love for the speaker. But he is on the verge of doubting it because he thinks that she is too weak to give herself entirely to him, and because she is obviously unwilling to cut those "vainer ties". He doesn't really explain what these ties are and why they are vain. Maybe he has low self-confidence and therefore thinks that he is not worthy of her. Anyway, the following lines ("But passion...") function as a counterpoint because she actually gave up a jolly party and came in the stormy night to the cottage just to be with him - which probably means that she really cares about him. But it doesn't neutralize his initial doubt.</span>
<span>The reason is that Abeeba took the initiative with the man who owed Sile money. He refused to pay it and she got into a physical altercation with him. She beat him up, as she was a rather large and fierce woman. Her husband, on the other hand, was meek and had been bullied and manipulated much of his life. She took a protective stance.</span>
