Why do I feel that I will never love again, 3 years after my husband died, is this the end of luv for me?

I have had propositions from very attractive eligible men, but I hate it so much I get neouseous with anger anytime someone asks me out. I feel very strongly that He was the only one for me, I am quite young and it saddens me that he was the one and I will never love again. Why do I feel very definately that I will never luv again and still feel sad that I wont