When a man frequently uses these four sentences, he is actually implying a harsh reality: he no longer has love for you.
First of all, it is those sweet words, when pursuing you, he may say good things to you, as if you are the only one in his heart. However, as his heart drifts away, these sweet words become hollow, his patience and understanding fade away, and all your actions become a burden in his eyes.
Secondly, he began to become apathetic. Maybe he will suddenly be cold to you, or even ignore you, as if you have disappeared from his world. This attitude shows that he has lost interest in you and his heart has long since flown elsewhere.
Moreover, he always uses busyness as an excuse to refuse to meet or communicate with you. He's always so busy that he doesn't have time to spend with you. But in reality, it's just a sign that he doesn't value you anymore, he has found something more important, and your place in his heart is no longer important.
In the end, he is indifferent to your feelings. No matter what difficulties or worries you encounter, he will not care, and may even ignore your emotions directly, making you feel cold. This coldness towards your feelings shows that he no longer loves you and has lost interest in you.
Overall, when a man uses these four sentences regularly, he is actually sending a signal to you: he has lost interest in you and his love for you has been extinguished. At this time, you should also learn to accept this fact and stop wronging yourself for someone who no longer loves you, because you deserve better happiness.