Love always trusts

I think this means that loving others means we give them the benefit of the doubt.  Instead of assuming the worst or judging that someone has poor motives, we assume the best and "trust" their motives are pure.   Trusting as a way to love means we believe someone will come through.  They will make it.  Trusting means we can rely on someone to do the right thing.  

Perhaps trusting someone requires time.  After all, we have all been let down, but we can't all be perfect.  Trusting someone as a way to love means we keep trusting even when we are let down.  We trust that they will eventually do the right thing or that they will eventually come through.

If love always trusts then we can't give up trusting even when let down.