For K1 visa, at P4 stage, it required Evidence of Engagement to Fiance(e) attached to DS-156. In fact, we have't had an engagement ceremony or an engagement ring. Just one day, we talked about K1 visa by emails. Then we decided to apply it. So what shall we provide as the Evidence of Engament to Finace(e)? Can we show the consulate Fiance(e) Letter of Intent saying that we are willing to marry him(her) and related emails?What do you suggest?