dating scene canundrums...

Wow...this dating thing really has me wondering some days which end is up.   I am pretty confident of what I want and don't want.. or atleast used to think I was.....   I am getting alot of attention crazily from 24- 30 year olds...which ofcourse...I find a bit amusing...but   just that.   I would never go for any of this...especially since I know they really are looking for one thing and one thing only.    A man I was dating feels I should embrace life, and with it every flavour of ice cream I can get...if you get my drift...... While I wholeheartedly believe I am embracing life....and love...and want to do this...   I don't believe this ever was intended to be in reference to "sex" only...   but then again I'm not a man,  I don't think with my "dick"  ...ok...  I guess I don't even think with my vagina...   I guess life and some of my decisions would be alot easier if I did.   I know that last statement wasn't necessarily fair.  It was meant to be a bit tongue n cheek for those that don't really know me.   I just know myself    Well enough and I really feel that I cannot do this and stay true to myself and who I am spiritually, and emotionally.   I may be getting alot of attention,  but most of it is not the kind of attention I am after.   I do think and feel that man I was dating had some pretty personal motives behind this...though.. I believe he believes that with his heart...  he was hoping I would be agreeable to  an open relationship...  something which I'm not sure I can do.   I was hurt that he had decided after a brief commitment...that it was too much ...so he had to call it off...   and now he is proposing this.   Because of the way I am in relationships...  I feel I would become too attached.. and not be able to move on and be with anyone else... 
I know there are others interested in me.   I want to be able to move forward...   so what do I do?  Is there ever really anything true about having your cake and eating it too....???!!!  Lots to think about.   I think for now  I will just take it slow,  take it one day, one hour,  one minute at a time and see what life brings.   I don't want to say no to love,  or opportunity... but I want to be careful with my heart...and I don't want to be tied to something that will never develop into anything more..... I love myself too much for that.  That is almost as bad as staying in a passionless and loveless marriage for too many years to mention....   I deserve better.