Ask him if he talks to girls. If his answer is yes then you should be like "Why am I nlt allowed to talk to boys?" it's not like you're cheating on him with them. You're socializing and there's nothing wrong with that. And you should sit down and talk to him seriously. Ask him if he's serious about the relationship. And I'm sure he can make time for you. A text to remind you he loves you isn't going to hurt him.