Be yourself and never second guess staying true to you!
There is far too much "bait & switch" going on with dating. A person bends over backwards to "impress " you in order to get you emotionally invested only to revert back to their "natural self". A woman who goes from cooking up a storm for her man in (the begining), to telling him, "You got two hands fix it yourself!" is one such example.
It's not uncommon to hear a person say, "She/he is not the same person (I fell in love with)."
Awhile back I wrote a hub on this subject that gives more of my opinion on behaving to "impress" early on.
Aside from the "Disingenuous" behavior some people use to "lure" someone in emotionally I think the real danger in "doing too much" is killing the romantic/passionate side of the relationship by making "domestic activities" a top priority.
Any man's mother or a maid could cook, clean, and run errands. It's the physical intimacy of touching, holding hands, hugging, kissing, showering together, snuggling while watching TV, dinner by candle light, flirting, using sexual innuendo, romantic getaways, and passionate sex that separates "relationship love" from any other kind of love.
The biggest difference between "relationship love" and (paternal, friendship, and family love) is sexual/romantic desire. Investing (too much time) on things a man could do for himself or have someone else do rarely makes him feel "special". Men would rather feel "desired" than "taken care of."