So I saw my ex boyfriend of 3 years (split in 2015) on a dating app. I feel regretful of how I was in this relationship (although not solely to blame for the breakup) and have learnt a lot from it about how to do things differently. He was my one true love and I'd love to have contact with him again. We haven't spoken in about 3 years (both were in relationships). Shall I do what my heart says and make contact but risk getting blanked?