Relationship shifts

i have been a in relationship since 6 years and its gonna be almost 2 years of the relationship of long distance and things between us have changed so drastically i remember i had done something wrong and she was changed after it like in the the first 6 months when she went so after it i was trying to be a better person but i end up doing something or the other things not cheat or anything like i used to go out with friends drink and pass out where as she has done the same but i feel like right now we are jn a situation like Yaa we do the talks we tell each other everything and but idk something always feels off and for a fact she has changed overtime n i had an idea of how she is but it doesn’t aline to me anymore but Yaa i have put her through a lot so i feel like i deserve it but sometimes like obviously i feel physically up sometimes but i cant idk i was very much open about things but now i feel like i would be judged or something so i feel like i should shouldn’t say it and she had told me like we were gonna end things like 3 times bad bad times between this long distance but some how we managed but idk what am i suppose to she is not the same person anymore . Sorry guys if i said things vaguely idk these my my thoughts i hope yll sum it up and tell me what should be doing about it it !