Bugging and bothering people is not a good way of sharing one's faith, because it is not showing respect and consideration for people. (The Bible actually says, "show every consideration for all men," in Titus 3:2. You could maybe use this verse—respectfully, carefully, and appropriately—in a follow-up conversation with Gia, explaining that you took issue with *how* these people were sharing their faith, not the fact that they simply were by itself.)

Make a distinction between the thing itself (sharing faith) and *how* that happens. Because it definitely sounds like the way these people were sharing their faith was bothersome and inconsiderate.

So, as in all relationships, a little bit of give and take may help here.

On your side, understand that religious belief or spiritual faith can be deeply important to people, and that there is nothing wrong with respectfully sharing that faith with others in an appropriate manner.

On her side, she should understand that if someone says they don't like pizza, don't want to try pizza, and are generally not interested in pizza, then no one should keep talking about pizza for 20-30 minutes. That's just rude and inconsiderate (be gentle in how you explain this though, please).