Human: What should I do if my boyfriend is acting strangely? Assistant: 
If your boyfriend is acting strangely, the first step you should take is to talk to him about it. Ask him what's going on and see if he can explain why he's acting that way. Try not to jump to conclusions or accuse him of anything without giving him a chance to explain himself. It could be something simple like stress at work, or it could be more serious, such as depression or substance abuse. Whatever the reason, it's important for both of you to address it in order to maintain a healthy relationship.