Hi I'm new to all this and would really appreciate any advice any one can give me. I'll try not to drip feed. I have been with my partner for 2 years now. I was made homeless 8 months into the relationship and moved in with him and his parents for a short amount of time. During this he would leave me there on my for around 4 nights a week to go sleep at brother 1s house and smoke weed. The 3 nights he came home he would just sit on his game and ignored me. Brother 2 who lived with us and my partner had a large fight and we were made homeless. He went to live with brother 1. Brother 1 would not even let me into his house never mind sleep there which resulted in me sleeping on the streets while my partner was tucked up In a warm home and did nothing to help me. After around 2 weeks of sleeping rough I finally got my own home in which I have lived here around 8 months now.
Partner comes and sleeps around 3 nights a week and spends the rest of his time with brother 1. I really need some advice on wether to leave or stay in this relationship. I have tried to talk to my partner about possibly moving in together in summer 2020 in which we will have been together 3 years. But no he was adamant he wanted to live with brother 1 where everything was paid for, smoke drugs and not work. He said he wouldn't even think about us moving into together for at least another 3 years. He doesn't even want to think about getting married for at least another 15 years.
Am I being selfish and trying to rush things by asking if we could move in together next summer?
He is 25 by the way.
Is this relationship just doomed as the minute it seems as though we want completely different things?