The lad has gone out of his way to state how much his team-mates and the manager and the club have helped him reach the heights he did last year, I seriously doubt that he's upset that Firmino scored, he's obviously massively frustrated with himself, for the mistake which led to them equalizing and nearly cost us. he's frustrated he hasn't scored and that things haven't been going that well for him as of late, he's got 2 goals, but he's got high expectations of himself obviously as a competitor he wants to do more and be effective.
Don't feed into the ''ego'' agenda.