You think about having kids, raising a family, sharing lots of romantic adventures together. That will only happen IF he/she likes you, IF you continue to like him/her, IF you decide to have a baby, etc. This does NOT mean that you should maintain relationships with other people “in case you broke up”. I’m talking about what you would do if you were completely alone.
What happens when he/she does something different from how you’d imagined? You’ll either feel hurt that he/she isn’t doing what you want “anymore”, and perhaps try to change that person (which will not be well received).
So, to start off, try to not imagine what it’d be like, or how good it would be.
This will allow you to understand what you want better and know what to do in most of the common situations.
You’ll probably still feel a bit hurt, but it won’t be the end of the world because you’ll have a life outside of the relationship.
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