No ring No Baby

3 1/2 years together we been living together since the first month that we got together. Got our own place (waiting to buy untill married) but I have no ring . I have no baby of my own but he expects me to take care of his 15 year old sister ?? I’m only 20 myself . Legit . Like how you gonna expect me to do the best I can with her but not give me your best . 🙄 why has he not engaged 😕 I have been patient with him . Never have I asked when or why he hasn’t yet . Because I want it to be on him and make sure he wants to 100 % . But how long do I wait for someone to know I’m what they want .