O'Collins Discussing Richard of St. Victor and the Trinity

This material is taken from The Tripersonal God (pages 143-144) by Gerald O'Collins:

"The divine persons are three incommunicable existents [for Richard of St. Victor]. The Father exists but is not the Son or the Spirit; the Son exists but is not the Father or the Spirit; the Spirit exists but is not the Father or the Son . . . We saw earlier how Richard of St. Victor pushed the analogy of love when expounding the tripersonal God in the light of St. John's lapidary confession: 'God is love' (1 Jn 4:8, 16). Self-love is not the truest and highest form of love. As gift and exchange, love is plural and requires fellowship with others. To be perfect, the human dialogue of mutual love must be open and, in fact, shared with a third person; the love of two persons is thus fused by a third. This version of love at its highest and best, if true of human beings, must be true also of God and in an infinitely greater way."

Comments: Richard of St Victor's argument seems to labor under the notion that the "God" mentioned in 1 Jn 4:8, 16 is the triune God. Maybe this interpretation of the Johannine scripture is not required, but it seems like this is how Richard and Augustine before him construe it. Secondly, the context of 1 Jn 4:8, 16 makes it clear that God the Father is being discussed and not the triune God. Thirdly, and I don't mean to be flippant here, but three is a crowd, IMO. How O'Collins can bring in the idea of three persons somehow completing or exalting love to its figurative apex is beyond me. Why stop with three divine persons other than because of special pleading?