Well, if your partner tells you you're farting too often than that's one thing. If someone wants to change something about you that you and others around you have grown to appreciate then you should be asking yourself if you're with the right person.
Being a servant is dangerous unless both parties agree on this approach in a relationship. I've lost count of how many times I've seen two people together where one changed to accommodate the other partner and ended up being a perpetual ass-kisser, leaving everything and everyone behind while under constant control of his/her significant other. The other person may never be happy and this can end very bad for both parties involved.
When people are genuinely looking for someone they're not looking for someone to change. They're looking for someone who can complete them. They're looking for their opposite in some aspects. The right person won't try to change you. They'll embrace that you're different.