Sex with older guys/ catching feelings/ *asking for a friend *

I’ve started having sex with guys that are older than me (3-5 years older) and OH MY GOD they hit whole new levels in sex I’ve never orgasmed before with guys my age and now it’s so uncontrollable. In a good way and now I literally can’t keep away from wanting to have sex with this guy that I’ve been hooking up with. He makes me feel good in the sheets and we’re really good friends outside of the bed. But he’s starting to catch feeling and I don’t feel that way about him, and I’ve told him I don’t. What should I do!?