Clear is kind
Being clear is an act of kindness.
Not being gentle with a message. Not embellishing or surrounding an idea with a crumple zone. Not omitting topics in hopes the person will identify their absence.
People too often think softening or obfuscating a tough message is the kinder approach relative to shooting straight. But they undervalue how stressful and disorienting a lack of clarity can be. They also fail to imagine how it will feel AFTER the initial shock or surprise of a message when people typically appreciate their new clarity.
There's a saying in dating where "if you think they like you, they do, and if you're not sure, they don't." Don't leave people unsure.
If you want to be kind, be clear.