My elder cat a little irritates me last time

My elder older cat a little irritates me a little last time lately. ('elder' is usually used for people and is a bit archaic, and I think you mean 'lately' but I'm guessing)

I have two cats at my home. ('my' isn't necesary here) One of them is seven years old and the second is fifteen (years old). ( You can omit 'years old here) Their names are Martin and Markel. I'm fond of them and they make me smile and happy. I really admire of their behavior as they run throughout my apartment, fight between themselves and sing songs. (not sure 'admire' is the right verb here). It was absolutely hilarious but last time when for about half an hour Markel has started come was coming to my room many times every day and lay on the floor and round was turning round and round on the floor and off course he looksed at me and saysid "I want more affection from you" (did you mean 'he looked at me like he wated to say "I want more affection from you') but and I show him affection when he comes but it repeats happens every day. ('repeats' sounds abit awkward) And I feel a little tired of it. Even during the night he comes to me and sleeps (in my bed). Perhaps my cat very loves me very much and I love him too, but... 

I understand that I must appreciate that what I have =)

Some advice from me:

It would be better for you to avoid very long sentences.

And remember about word order in English

Let me know if you have any questions