Definitely 100% needs a friend. Until this year my 2 rams lived happily together once they’d been reintroduced after tupping and shearing. Now I’ve a 3rd ram and they seem better again.
Don’t feed them, don’t pet them, don’t turn your back on them, keep them within an arms reach at all times. You and the ram need a mutual respect for each other and don’t be afraid to show him who is boss.