Whenever we're together...he scares me?

When I'm with him it feels like I'm the only one. He comes to see me every chance he gets, and always "asks" for a kiss. He opens my car door and keeps me interested and on these wild crazy fun adventures all the time. He takes my breath away.... he just... takes way too many risks, like he stands up on his motorcycle with no hands on the handle bars (on the highway by the way) He scares me sometimes, he's wide open and I love it. But I've lost a boy friend before to alcohol poisoning a year ago... and he was a risk taker..big time but I loved him though and I didnt think I'd find anyone I could love again...and I think I have...what should I do? stay with him, and end up hurt in the end or break up with him and save myself more heartache....?? is it better to love and lost or never loved at all...???