I think loving someone means accepting them for who they are - physically, personally, etc. I don't think that means that you have to agree with them or the decisions they make. But you should at least agree that they are doing what they think is right or best, for them.
I love my children. However sometimes, I don't like them. Some minutes, hours or days, they drive me crazy. I think this is completely normal. I think we all "wake up on the wrong side of the bed" and have "bad days". So do I love them on those days, yes. Would I jump in front of a speeding truck to save them, of course. Do I want to be right next to them every minute of that day...well, not so much.
I love my brother, but we are not friends. In fact, if we were not family, I don't know that I would have maintained a friendship with him. However, the reality is we are siblings. We are very different people. It takes A LOT of patience to get along with him or even to be around him sometimes. But we do. Because we are family.
I'm sorry that your parents made you feel so bad. It's sad that they couldn't be more accepting of you, your choices and helped you to understand growing up that you are a wonderful person even if they don't see eye to eye with you.
Just remember it takes all kinds to make this world work. Try to accept your parents parenting flaws and just resolve to be a better parent to your kids. I sincerely feel like we all try to "make up" for where our parent failed or flawed, and we go on to make all new/different mistakes with our own kids - we just don't see it.