AM BROKEN 😭💔

So my boyfriend is still friends with his ex definitely I have no problem about that but just scared something MIGHT be going on between them have asked him thousand times he keep repeating the same answer" I HAVE NOTHING TO DO WITH HER" but also he has this attitude of always asking me to export my chats with other boys ,I usually do it to avoid problem ( although he has trust issues ) . Now am been restless and thinking about the relationship between him and his ex so I as his for an export of chat with his ex but he refused and stood on his ground to Never send the chats

I don't know if really he is cheating I don't know what to do

HELP ME AM BROKEN 😭💔