I Want to Be In a Healthy Loving Relationship

My bf confuses me. He wants me to contribute financially so we can build a house soon (me contributing means that the house will be mine also),encourages and helps me work on my weight, took a loan. So those things indicate that he's looking at a future w me. At the same time however, he bad mouths me w his co workers and friends...the latest scenarios being I told him I'm going to work in James st. and he calls me as if in shock asking me in front all his coworkers 'are u working in James St?' as if i didnt tell him before. I find that soo manipulative. I felt as if he's trying to give ppl a bad impression of me. I'm not sure if he wants a future w me or not.