Talk from experience, nay

Never trust human nature, it's ugly, find a partner which's mature enough to avoid unnecessary affection proactively, dont find partner that involved in all the ding ding dong dong and say, "if you love me u should trust me". Don't test the boundaries of humanity.

When shit happened, they will cried Infront of u and claiming it's not what they intended in the beginning, it's accident, it's out of her control, and act like a victim. A mature partner will avoid that from the beginning to prevent him/herself to fall into such miserable situation.