Split with ex a few years ago now but every so often he will contact me to see if I've changed my mind about us being together. . He's now realised what he's lost so to speak. I always say no...theres good reason why he's an ex (as he drank quite a bit, borrowed money from me) . I say I'm not interested. But he's quite melodramatic and immature despite him being a lot older than me as there's a lot going on and he thinks I could sort his life out if we were together. He has some mental health issues. He turned up at the flat one day when Present bf was there. BF stayed out of the way. I sent him packing.He says if he gets in touch again he's walking away! So basically I'm going to live on tenterhooks ever after aren't I? He could turn up tomorrow or ten years on and that will be it? I lose my BF over it. I've never done anything to make him not trust me. Even if I was single I still wouldn't go back to the ex. Is there an answer to this? I just feel like it's a time bomb.