First, if a person loves you very much, he is very concerned about your health.
Love is a beautiful thing. When a person loves you very much, he cares about your health. Because this person is afraid of losing you, he wants you to be healthy and live happily with him. If this person really cares about your health, it means that he has regarded you as a part of him, so if you are uncomfortable, this person will feel the same way. Therefore, the person who really loves you will always take your health as the first thing to do, because he wants to be with you all his life, which is one of the manifestations of love!
Second, if a person really loves you, he won't care about his own gains and losses.
When you fall in love with someone, if this person will haggle over everything, then you don't love you at all. But if the person you get along with doesn't care about anything, let alone personal gains and losses, then he really loves you. Because he thinks you will be family regardless of each other in the future. So he will make a lot of sacrifices and feel very happy at the same time, which shows that he loves you very much.
Third, when the opposite sex appears around you, he will always be very cautious.
If you want to prove whether a person really loves you, then the easiest way is to look at his feelings about the opposite sex around him. If he doesn't have any affection for the opposite sex around you and just manages to cope for you, then you still love you very much. Such a person is worth getting along with!