People's actions and motivations can be complex and varied, and there could be several reasons for his behavior.
However, I can offer some common possibilities as to why someone might look up their ex on social media:
Curiosity: It's natural for people to be curious about their past and what their ex-partners are doing now.
Nostalgia: Reminiscing about past relationships and memories can be common, especially if the breakup was amicable or if they shared significant experiences.
Comparisons: Sometimes people may compare their current life or relationship to past experiences.
Closure: Seeking closure or validation after a breakup is another reason someone might look up their ex.
Regret: They might have regrets about the breakup or unresolved feelings, leading them to check on their ex's life.
Insecurity: Insecure feelings in a current relationship could lead someone to seek reassurance by checking their ex's social media.
Mutual connections: Sometimes, checking an ex's profile might be unintentional and could occur when browsing through mutual connections' posts.
It's essential to remember that looking up an ex on social media doesn't necessarily mean your boyfriend is still interested in them or that it reflects negatively on your relationship. It might be worth discussing your feelings and concerns with your boyfriend in an open and honest conversation. Communication is key in understanding each other's perspectives and resolving any potential issues in the relationship.