What should I do? Trust God or not?

[Sam J]

Since God is obviously not communicating to you verbally, I believe both you and Mr. A are mistaking your own fears and desires for God.

When you understand God, you will understand that He could not care less about the human relationships we pursue, because,

1. As long as we love some people more than others, we have not come to know ourselves
2. As long as we focus our attention to the material world, and the people, places and things within it, we have not come to know ourselves
3. If we have not come to know ourselves, we have not become known to God, and therefore it is impossible for God to communicate with us

God loves us all unconditionally, and set each of us free into this world until we can learn to love each other unconditionally and earn our place within His kingdom.
I suggest you stop worrying about Mr. A, stop analyzing your thoughts as though they're God speaking to you, and have faith in love.

To know love is to know God. To show love is to become known by God. That's all that matters.