“Is my older man bored with me?”

I have been with a man who is 26 years older than me for 6 months but recently, within the last month or so, I feel as if he’s not interested anymore. He claims it is because of stress but I just don’t know what to do anymore.

He does not give me affection anymore and the only time he acts as if we are together is when we are around others. I have anxiety and I don’t want to ruin an otherwise happy relationship because of my anxiety or his stress, I just need to know if this is normal. Has the lust just worn off is he bored with me?