Before I begin, just cool down
yourself.
The reason for your break-up is because you are feeling insecured
and confused over what you want and what he gives. Basically, there
is a little misunderstanding of needs and reality. 
You want a bf, you want love and you want company - probably he can
give the first two, but lacks in the last aspect. All I can say is
that personal space to a guy is pretty important (Especially if he
is a Aries, Leo or Sagi), however, over the burst of emotions from
your words here, I suspect its more than what had just happened.

You felt disappointed when you have broke off with him and he
barely put in any effort in trying to win you back - originally,
different from what you had wanted in the first place. Now, when he
claims that he loves you - you doubt. Its like a sinking ship -
descending into a void of nothingness 
Is love (and only love) enough to substain a
relationship?
You both have to talk - I silly to lose a relationship without even
first communicating and coming into a proper & rational
decision. I urge you to date him out to one good, quiet place and
trash your feelings to him. What you want to know and what he is
really feeling/thinking would be given from there. 
P.S: Are you a PIsces, Scorpio or Cancer? 
Cheers