I'm in a relationship with a guy for the past 2.5 years. He had so many trust issues initially. Until he met this girl 3 months ago. Now he believes every thing she says and he claims that time changed him. Yet he questions me about things multiple times even now. I don't know if I'm just being insecure or I've a valid reason to worry. This girl he befriended, she's dating his best friend. I know there's nothing romantic between her and my boyfriend. But I can't help but wonder if he gives her more importance compared to me. Am I overthinking this?