If you're in love with someone and the person is beginning to take your love for granted base on the fact that you love them so much and you make it obvious to them that you love them, so they are beginning to treat you anyhow. Here are things you can do to put them where they belong.
1... Try cut contact between both of you.. let the person know that you no longer wait for them to validate you. Live your life to the fullest and act like they don't exist.
2... Let's go off good moments.. erase every memories you have shared with them. Begin to do things that make you happy and add value to your life. Hangout with friends and do things that matter to you. Let your happiness be your priority.
3... Accept the fact that people come and go.. accept the fact that not everyone that start a journey with you will end it, and take them off your mind completely.
4... Try and love yourself.. love yourself enough to know that you don't deserve anyone who will not treat you with love or reciprocate the love you give to them. Love yourself to the moon and back because self love is the ultimate.
5... Convince yourself that it is not wrong to fall in love, you only fall in love with the wrong person. Encourage yourself that someone who deserves your love, someone who will not take your love for granted will definitely show up it's just a matter of time.
These 5 things is all you need to detach yourself from anyone who is taking your love for granted.