If you will try, just TRY to find out what ails him and help him I shall never, NEVER forget your kindness.

Perhaps he does not want to marry me.

Perhaps he does not care for me as much as he thought he did and will not tell me because he does not want me to feel bad.
If that is it tell him not to mind my feelings at all.

I want him to be happy.

If it would make him happier to have me give him up I will do it, even though I shall pray to die right away.