Husband's actions towards me

Lauren
I just need to rant because I literally have no one to talk to. 
I have been married for over 7 years and while we have had our ups and downs, lately it has been in a constant down state. 
I love my husband dearly and I will admit that I am pretty hard to handle at times, but I always try my best to please him and show him lots of love. He used to do the same for me, but lately he has been cold and distant. He gives me the "silent treatment" at random times and I have to fight to figure out what is wrong. His answer is always "nothing". 
I do not feel that he is cheating on me, but I just don't know what to do. There are no major stressors in our life as we have no children, no real financial problems, and are leaving for vacation in 2 weeks to see his parents. All I want is for him to talk to me, but that's not happening. 
Any comment or feedback is welcomed.