I have been with my DP for 30 years (since our mid twenties) but had a rocky start. He had recently split with his exgf (of 1.5 years) a few weeks before (she lived in a different city about a 2 hour drive away and he mainly saw on alternate weekends). She had MH issues (self harm, anorexia, had cheated on him a lot) and was later diagnosed with BPD.
I knew at the time that her parents still phoned/wrote to my DP for support and I suspected he still kept in touch with her as he "wanted to help her" and felt torn as she was so ill.
After we had been dating for about 6 months seeing each other during the week and most weekends getting to know each other friendship groups and parents/siblings etc he invited me to stay with him for a month or so whilst my flat was being refurbed.
However, after a few weeks his attitude to me became cold and he asked me not to answer the phone. I told him to sort himself out and I left. 6 months on he begged to get back together - we have been together ever since and have 5 DC.
Yesterday - a large envelope came for me from his ex (30 years on) she wrote that my DP had never loved me and she thought I should know. It included copies of letters from the time (late 80's) that he had written to her showing how he had tried to get back with her (and had slept with her on her birthday and bought her eye wateringly expensive presents that she had requested, when we were dating) but she had spurned him when she found out that at the time I had been staying at his flat. He had written that he had never loved me and that I meant " less than nothing to him".
We are in a bad place as a couple atm. I feel like my relationship has been totally based on a lie and that all my happy past is gone. I suppose I should show my partner the letters?
If we were happy at present as I thought we were for many years, I would just think - let it go.However, the past few years have been hell (financially and health wise). I have no confidence in myself or anything I thought I knew and this seems to affect how I am viewing this. Why has his ex sent all this now after so long? I suppose she has tracked us down on the internet and other crap might follow.
What would you think? I am a longtime poster on MN (mainly on reading/tv threads)but have name changed for this.