my best friends guy is love with me? I really need help..she is so depressed how can I bring them both together. .10 points for best answer?

Her name is fareesha. ..her guy is sajid..they had a relationship for more than 4 years...sajid shiftted tk Australia recently ( where we live)..last monday fareesha and sajid came to library together and k was their too .so she introduced me to him and from that time this guy keeps coming behind me..on Wednesday he again had gone to library in search of me and some of my friends said me about me...so on Friday he came to pick up fareesha from Uni and I was their too..he packed his car and came to talk to me and was repeatedly asking do I use Facebook or whatsapp ? I said no even though I did..but lately even fareesha wanted me and sajid to be friends with whatsapp. .so I gave him my number. .Friday night itself he texted me and we had a normal conversation and the same night he said me..he liked me from the day he saw me and met me..so I was like Okay thats fine..and then he said he wanted this crush to Devolop into a relationship and he is even ready to leave fareesha coz me now..I showed all the messages he sent me to fareesha coz I wanted to be a faithful friend. .she is badly hurt now..she still loves him..what can I do to bring them both back?