<human>: Summarize the given text in a few sentences.

I realize this question is personal and can change but I just want to get a rough idea on what people think.

I'm on reddit regularly and see a lot of posts on how people get bored of their partners and start wishing they experienced other sexual experiences if they are each others first or if they've had limited experience. this leads to them cheating or going on breaks where they eventually separate

Ive been with my boyfriend for a few years now and we're planing on settling down, we were both virgins and we were both old to be virgins ( he was 25 and I was 23 ). I'm beginning to fear that he might eventually feel bored of our sex life and have these desires to be with other women. I mean he didn't have any experience and nor did I so what if one day he decides hed like to be with someone who is more experienced? or that hed like the thrill of being with other women etc.

Part of me feels like a crazy lunatic because my bf hasn't expressed anything to hint that hes feeling this way if anything hes more interested in sex then ever but nonetheless reading all these posts about people and relationships having an expiry date before they get bored of each other is really playing with my mind

Is there anyone out there who have only ever had a single partner and have been okay with it ? is it a normal process to feel like you'll want to have sex with other people after a certain period but feel trapped ? is it possible that this won't happen or is that a slim in comparison ? I know I'm being crazy but I don't want to be naive either
<bot>: I'm getting paranoid that my bf might eventually want to have sex with other women since I was his first. I'm not sure if relationships have expiry dates if they start out being virgins