what does cuidate y te quiero mucho mean?
Cuídate is a pronominal verb, meaning the subject and the object/pronoun are the same. It is really "cuída te" but when you use the imperative form of the verb pronouns are appended to the end of the word.
Quiero in this fashion is used to express love. Have a go at it, from the dictionary on this site alone you should be able to get the rest of this on your own.
What does this mean?
Claro que si Me encantaria. te estare esperando cuidate mucHo
Claro que ... of course
si Me encantaria .... I would love too
te estare esperando ...I'll be waiting or for you I am waiting
cuida te mucho .... I care for you very much