You are blinded by what you think is love. Love is not on his Menu and you are on his Sex Menu. Be smart before it is to late and you have a child and have to chase him down for support. Leave period.

She didn't move in with him at age 17. She said in her first sentence that it was 2 months ago.

What were things like before you moved in together? Did you feel that you had the amount of attention that you wanted? Did the two of you argue? Are you arguing more in the last 2 months? Has he always been focused on trying to get his business going well? Who suggested moving in together?

For whatever reason, he doesn't feel the living situation is working out. No doubt the frequent arguing, and your need to push him to give you reassurance, have taken their toll. Since he hasn't actually moved out, after mentioning it a few times, perhaps he doesn't really want to... he may just want to have some more time to focus on his business and to avoid further arguing. You're hurt, and pain/fear often shows up as anger, but that won't help the situation... it will only make it worse.

Maybe try arranging a quiet time when the two of you can talk (no arguing) about what you both really want and need... whether you stay living together or not. Then you can decide if you are both on the same page and what the next step will be if you are or if you aren't.