Help he is a mamas boy!

So my boyfriend is leaving for basic training and AIT in 11 days. He spent the last month with his mom because he want to see her before he left for 5 months which I understand. But he said he wanted to spend his last two weeks with me especially because it's our anniversary this weekend. But when he tried to leave to see me his mom got mad at him and told him he has to stay with her until he leaves. (He is 22 and so am I ) this all happened after he asked me to take all next week off to spend with him and I really need the money and I can't get those hours back. 
​I'm upset because if the immediate situation. However I'm more worried about the future.  He says that he won't let his mom control our lives forever but how can I believe him? What do you all think?