Okay, so this is on behalf of my boyfriend. A quick rundown of his previous issues that may be relevant. He was in two serious relationships (short distance), lasting two and one years respectively. The girls basically trampled on him, treated him badly and left him emotionally damaged. Together we've worked through this, taking things slowly, and all has been well, for the most part. Our relationship is long distance and at times it gets to us both.
A few months ago he suffered a panic or anxiety attack as a kind of relapse from how he felt at the beginning of our relationship, unsure of how far to apply his emotions in our relationship due to him putting his all into the others and ultimately being thrown aside by his exes..
Recently I made a post about my retroactive jealousy. That's all good and well now. We've worked through that, but something new has surfaced, and I need advice on how to help him through his issue now. Sometimes, usually when he's missing me, or the distance gets to him, or we're stressed, he gets involuntary, unwanted thoughts. He told me he was thinking about me and how he loves me while I was out at work, then a partition of his mind retorted "No you don't". He was able to dismiss the thought quickly, but he's had this for a while now, and we've put it down to his anxieties. We have discussed similar things, and it came to light that he can best describe these thoughts as "coming from a dark, nasty, spiteful part of my mind that festers and feeds on negativity. It barely shows itself, and rarely makes its way into real thoughts, but when it does, it's not nice".
Can anyone shed light onto what is causing this to happen, or at least how I can help him. Naturally we're both worried about it, but we're determined to work past it.