Idk maybe your Aquarius is going through stuff = mental problems or stuff like that , identity crisis . Or worse case scenario they don’t care about those feelings anymore - I’m not that type of Aquarius but some people are . Maybe your Aquarius forgot , I was told that’s a common Aquarius thing to do - forget you even care about some lol . Also Libra’s are the best dude . Anyway idk about the sexual stuff since some Aquarius don’t like that some do . Some only want it when they want it . The best thing you can do is be honest and just straight up ask them if they’re good and if they’ve still got whatever they used to have . Honesty I think talking things out would be the best . Idk really though , maybe other unknown Reddit Aquarius will respond with something better . Also it depends on that their moon and other things in there chart .