If you really want help..........I went through exactly what your BF is going through a few years ago. I hated cats and I'm allergic to them too, my GF loved cats and always had one growing up. She knew that living with me meant no cats. Its all about compromising right? So being the great guy that I am I bought her a kitten for Christmas. I believed then, what I know now....she loved that cat more than me. Vacations and evenings were cut short because the cat was "missing her".
Eventually the cat grew on me but I never let my GF know it, same as your BF, don't EVER try to get him to admit to liking the cat! It'll just make him show you he doesn't like it. Get him to bond with the cat in his own way, it WILL NOT be the same way you do!
In fact use the cat to fill the gaps in your relationship. Your BF will bond with the both of you more.
You need to figure out were "y'all" need "SAFARI GLUE". Right now its glue is sticking to everything and he can't get it off, eventually it'll start getting on his favorite things and ruining them.
You mentioned fishing I bet safari would enjoy fishing more than you and in a very different way. Your BF would love to teach someone how to fish and I bet safari would listen well and enjoy learning.
Give him space to try to figure out the glue. Don't stand over his shoulder and show him how its done or what safari likes. Let him try to use the glue on his own, if he makes a mistake and gets a little glue on his hat it'll be more of a trophy to wear with pride than a stain.
Let him try walking the cat without you. My GFs cat would follow me around camping, but not follow her
that's something I missed. That's why Pouncey is on the next level of Kamping
He likes football so get a jacket for whatever crappy team "y'all" root "fer". If one is not available get one made. If you have to buy the fabric and ship it to Happy House Cats then that's what you need to do. Its still cheaper than that
God awful stroller or fake nutz You can't tell him about it either! You don't want us men to give it too much thought........ You know what edit that idea...... but I'm leave it in as opinion #2. Option #1 is go full on custom get him involved and let him make the decisions. You need to approach it correctly. We're visual and competitive by nature so show him pics of Pouncey's jacket in the 101 and make him want to do one better. Remember this is just an "idea you have" not something your "doing" so don't push him on it at first, give him time to start thinking its "his idea" don't remind him it was originally yours. Its probably better you not like something about the jacket. If you end up doing something like Pouncey's maybe a different player or preferably a good team like the Pittsburgh Steelers
I don't have the answers to a happy relationship. If someone says they do there lying. All I can offer is my experiences and what few thoughts us men have in our empty heads, if none of this makes sense to you ladies good, that's how its supposed to be.