Most Helpful Guy
1. Anything beyond a limit is not good even if it's nectar of immortality :)
2. Never lose your independence on any count
3. Initially he may like the idea but later will find it being too clingy
4. Always hold your own but while allowing chivalry :)
Most Helpful Girl
Well now this depends. At 16, what are you "relying " on? Every girl (and guy) has the right to expect their partner to be there emotionally, it is natural to rely on a partner for that. Financially? Do you rely on him to buy your lunch every day? Then yes, it becomes something to become concerned about. Rides to dates? Normal level of reliance there.
The bad thing is when a woman gives up her identity and needs the man to do everything from providing a place to live to putting food on the table. Bad BAD idea.
Relationships are all about balance. Each partner gives equally to it in the best way they can. Relationship = Partnership.