Relationships

I have a question , If you're getting serious with a guy or girl and things are going well and y'all end up stumbling across the religion & politics topic and y'all have completly different views , do you end things or accept the differences ? For example if you believe in God and your partner doesn't what so ever is that a problem for you ? And if you're a democrat and they're a republican and they speak poorly of your opinion , what would you do and how would you feel ? What if they believe in abortion for whatever reason & you don't at all? Just would like to know yalls thoughts and opinions .