यदा युवां प्रीति युतौ च दम्पती
परात्परौ तावनुरूप् रूपितौ ।
तथापि लोकव्यवहार सन्ग्रहाद्
विधिं विवाहस्य तु कार्ययाम्याहं ।।
गर्ग संहिता , गोलोक १६।२९
As per garg samhita and Bhrahm vaivart puran (shri krishna janma khand) Shree Krishna was married to Radhika. Please refer to the given reference and clear ur doubts abt it....Radha and Krishna are married to each other, it is proved!