What does it mean when a guy lets you vent and talk about your problems to him?

When a guy listens to your problems and lets you vent and tries his best to help you, even though he's always busy and at work but he gives you advice and takes time out of his day to do it what does this mean? And it's all through texting too

What does it mean when a guy lets you vent and talk about your problems to him?
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