Should I.....?

So.....my partner is a chill and nonchalant person like me tho I'm an overthinker. Being an overthinker in a relationship would mean that u would most likely need constant reassurance but i don't think my partner gets that. I've talked to him about how I feel like our relationship is kind of one sided even though I know it's not but I don't know how to prove that to myself unless he does something abt it. We're also semi-long distance rn which is hard as it is so yeahhh...