PO, one thing you are is honest & I don't mean that in a bad way!
I have met a few over the course of my 26 years of living for God that I called my "Grace Builders" (I am sure I am a "Grace Builder) to someone) & it isn't easy.
Faith is not feeling & Love, God's love, is a choice.
Ever had everything go wrong & then try to be thankful for it?
It goes against our human nature.
My nature says, "I like you, if you like me." "You can't stand me, well, then go fly a kite, I can't help it if you have poor taste!"
Jesus loved everyone & I am sure they were not all like the Apostle John who was I believe a little easier to love.
We have to make a choice to be nice, to love, to serve, to be kind!
Prayer, & sheer will power can help us to achieve this.
When I had someone I did not particularly care for, I would try to find ways to be nice, to be kind, to serve, to love that person.
If you act that way toward them it won't be long before your feelings follow.
Honestly praying for them will help as well.
It is hard to pray for someone for God to bless them & harbour ill feelings at the same time!
Sorry, I am rambling!