...but I have also felt many doubts about truth during our relationship. Not doubts about Jehovah God, but some of watchtower conducts and teachings...
Good. Don't forget that, if you follow your path towards JWdom. WT literature often tries to equate Jehovah with "his" organisation. Some people - after reading it often enough - believe that. But it's not true. You can leave the organisation without leaving Jehovah. You can follow the bible and live your life according to what Jesus told us, without the JWs and their additional restricting set of rules.
John 14,6:
Jesus said to him, “I am the way, and the truth, and the life. No one comes to the Father except through me.
No need to go through the Watchtower...