When in a serious relationship can you trust your partner easily?

Let's say you are fully in a serous committed relationship. do you find that you can trust that partner easily? or even when you are really in it is trusting them still difficult for you?

When in a serious relationship can you trust your partner easily?
Yes, but I often second-guess myself.
Yes, if they’ve earned it over time.
I want to, but I stay guarded.
Not really—I keep most people at arm’s length.
Other
Select gender and age to cast your vote:
When in a serious relationship can you trust your partner easily?
Post Opinion