The biggest check of knowing whether a person is true in his or her
claims about loving you is to see if he does love him/ herself or not?

Wanting some one is not love. Its cathexis.
Not being able to live without some one is again not love. It’s parasitism.

We cannot love others, if we cannot love ourselves well.

Love is when two independent people, perfectly able to carry themselves alone, decide to spend life together. And life means time !