Who created us, who takes care of us, who is always watching us, who makes sure that we are always taken care of, who makes sure that we are safe, who makes sure we grow in life, who fulfills all our wishes, who makes sure that we are happy, well if you do not know the answer yet, then ask yourself, it is God, who is always there with us. He is always there and always loves us, may not be directly, but when a stranger smiles at you, its God through him, when someones put his hand full of love on your head, its God, his ways of loving you are infinite. You cannot question his love, even when you feel the times are difficult and no one is watching over you or supports you, he is still there without our knowledge. Its same like if a mother locks a baby in a room to punish him, she keeps checking upon him that he is safe and good, her purpose is not to make child suffer but her purpose is to make child learn , so that he can grow up to be a better human. Now this is at very small level, the God wants us to grow as a soul, he wants us to evolve so we have to go through some harships. To see his love, you do not need any knowledge, you do not need to read any book, he is always there inside you, besides you, everywhere and always taking care of you, only your awareness can help you in realizing his love for you.
Whenever you feel no one loves you, do not question yourself or God because when you question, it means you do not believe, instead, just feel the God inside you as you are always one with the God and always flowing with same consciousness of God. You are always loved, whether you realize it or not, if you are aware you can feel it more, this is the only difference. WE all are a part of God and we all are beings of love and light and we all flow with love always.