Before you start screaming about holding on to who you were before the relationship, you need to remember that relationships involve compromises and you need to be able to do that before it can work.
There are a number of things which are okay to change when in a relationship. Here are some of them:
1. Health habits
If you’re taking your relationship serious, you need to understand that your health affects your partner’s life and vice versa and so you would need to reduce doing certain things like smoking and drinking. You need to take care of your body and start eating better and throw in some one or 2 exercises regularly.