When the gemara recounts how R' Yochanan had the Issurin shel Ahava, it tells over how he used to be menachem avel by carrying the bone (tooth) of his tenth child that had passed away.
The gemara goes on to tell over a few stories where he met other people with Issurin shel Ahava, and after the person said "I don't need the Issurin or its rewards" he'd take their hand and 'relieve them' of their issurin, i.e. they disappeared.
The gemara asks the obvious question: If R' Yochanan was able to relieve others of their Issuring, how come he didn't just do it for himself? The gemara answers that a prisoner can't take himself out of prison, meaning that he can't do it for himself.
My question is, if he can't do it for himself, why can't he do what he did for others, get someone else who is having these Issurin shel Ahava and have THEM get rid of it for R' Yochanan?
Also, Hashem only gives someone trials that they can handle. If they can't handle it, they won't get it. The gemara seems to say on the previous amud that one will only get Issuring if they can handle them. If this is the case, why did R' Chiya bar Abba and R' Chanina get Issurin if they in fact couldn't handle them?