I lost an expensive bday present from my gf 4 years ago and am still lying about knowing where it is. For years, I had wanted glassblowing lessons but would never spend the money on it because it's so expensive. After dating for a few years, she surprised me with a voucher for lessons at a local glass shop. She keeps asking when I'm going to use it because she's convinced the place will go out of business. (It's been around for over 20 years and is very popular, so I doubt it.) I've been telling her I'm just too busy and my schedule is too unpredictable to set an appointment. For over 4 years now. I've moved twice and gone through literally everything I own several times (which isn't much, so it doesn't take much time).

I feel so guilty because I usually don't want things, and she's usually pretty bad at giving gifts. She was so proud, and it comes up so infrequently/is dismissed so quickly that's its just so easy to keep lying.