I don't think it is necessary to like your T (or anyone). Lot of people get help from being "challenged" by the negative assumptions of others. Someone saying, "Oh, you'll never do X" is often cited as why so-and-so became famous for doing X. Often it is a teacher who says it and they can be very like T's.

If one has an okay sense of one's self then often one can look at questions such as you do, struggling931, and learn a lot more from doing that. I know sometimes my T and I would disagree on what direction to go in and I would deliberately go in the direction she indicated instead of the one I wanted to because I wanted her with me and she wasn't familiar with my way but had been hers and knew it worked. I realized it might take longer or be harder for me to figure out what was going on because it wasn't the way I would do/go about things but it still worked. I think working with someone we don't like can be like that; it's still an opportunity to learn new things.