I've never been one who could move on from the past very well. This became so much worse when some very unwelcome changes came into my life, and my hoarder tendencies really started to get worse, especially in terms of items that I owned from the time before. (Although, as I said, I'm predisposed this way lol)
I've never had a bad relationship, but the most important one to me I didn't end up with many gifts from. However, the few gifts I had, I most certainly kept. It wouldn't have seemed to off for me, though, if you had seen my room earlier this year. I finally had to clean things, and a lot of things I just ended up getting myself to throw away because I was so sick of the mess - I like things being clean, I really do!
Having never had a bad relationship, and really treasuring my last one, I specifically avoided ever throwing away those gifts, though. It was a deep love that wouldn't be able to go away overnight. However I noticed that keeping those gifts - and other things I hoarded lol - isn't going to bring back the past, and I successfully threw a whole lot of it away. I still wish I could keep everything, but there is simply no room, and I like cleanliness.