my boyfriend of 2 yrs is a monkey and im a pig. I dont know if we're compatible for each other .

We love each other dearly but there are times that he distances himself from me and I don't understand it. It seems like as soon as I get close to him, he distance himself and I won't see him for a week or so. Just recently, he hasn't distance from me and I'm afraid that in the future he might again. Down the road, we would like to get marry. Are we a good match and what do I need to do or he needs to do to make our relationship work?