Is my friend's boyfriend controlling?

[Laura]

I have this friend I've known for two years and 6 months ago she started going out with this guy. He's 18 and she's 13 (almost 14)! I never met him but when she calls him she puts the speaker on because her phone's sound isn't great. So first, she always has to call him. Sometimes she can't call because she's in class and he'll text her saying 'why aren't you calling me'' Call me!'' She constantly tells him she can't but he gets angry so she has to go to the toilets.He's always jealous. He keeps calling her to check she's not with boys and he thinks she chats with boys on other sites than facebook so he wont see. She would never cheat on him! Because he's 18 he thinks he knows more than her and that he's always right. He's a drop out, he dropped out of school at 15. Also, at his birthday, my friend was supposed to get 75$ from her mum to give him as a present. She thought she was pregnant not long ago (he doesn't want to use a condom) so her mum didn't give her the money for not protecting herself during sex. She called him saying she was so sorry she couldn't give him any money and she loved him. He started shouted at her saying that now he can't buy new clothes because of her.
The other day we were walking and she was talking to him on the phone. I asked her if she could bring money to eat at the restaurant. She said she would ask her mum for money and he heard her. He started saying "Wow! Your mum doesn't give you any money for you boyfriend but she'll give you money to eat with your friend!''
She loves him more than anything in the world so I don't want to hurt her feelings. But I know she won't tell me if he's manipulating her, I understand, i'm just scared for her