What should I do???

I am a 19 year old mother of a 2 year old n am having some drama with my sons father...we were apart for about a year and a half n in the last 3 months have been spending a lot of time together...i love the man a lot but feel nuthn back....i tried so hard to show him i care never asked for ne money to help with our son, bought him a truck so he could make it back n forth to work, help him with money when he needs it n ocionally i gave him money to go to the bar....i was always there for him n weve been fightin a lot lately bcuz i dont feel appreciated...but i feel as tho he belittles me bcuz im younger n it makes me feel unappreciated...i want to b talked to with repsect for everything ive done for him n bcuz he should have respect for me bcuz as young as i am i manage to take very good care of our son on my own....i really wanted it to work between us but he says he dont want to b tied down until i change am i really the only one in the wrong n should b ok with him being single???