I love my teacher more than my parents? How is that possible?

I thought i love my parents but know i realize that what i feel for them it's just gratitude and empathy. I care for them and i think that they love me but their love it's conditional. They love me when i am successful but when i am depressed and i need advice they really don't care...they just say life is hard what can you do, you have to accept that and live like that unhappy...I had a bad childhood, they really were irresponsible parents and selfish. My mum told me that i should marry someone who has money so she can live a better life, (we are not rich but we don't live in poverty either, she doesn't care about my feelings at all) Sometimes i thought that this was normal, she has a busy life trying to earn money for my education. However i recently felt real love from a teacher in my school who was so caring so wonderful for every student, who really pays attention to our emotions, feelings and this teacher encouraged me to do amazing things. And i really love him from all my heart. When i compare the love i feel for him and the love i feel for my parents or other people who i thought i love, i realize that i actually love this teacher more than my best friends and my parents...how is that possible??